Lego Batman Legacy of the Dark Knight: WayneTech Cache Locations & Interactive Tracking Guide

The 12th Old Gotham North WayneTech Cache is found on the edge of the walkway, by the water, on the north side of the district.

The 13th WayneTech Cache in Old Gotham North is found between two red benches on the walkway by the water in the northeastern corner of the district.

The first Old Gotham West WayneTech Cache is found by the wall, under a pipe, on the lower roof of a building in the middle of the district.

The second WayneTech Chest in Old Gotham West is found next to a skylight on the roof of a building in the middle of the district.

The third WayneTech Cache in Old Gotham West is found next to a pile of crates and a skylight on the roof of a building in the southern part of the district.

The 4th Old Gotham West WayneTech Crate is found next to a water tank and a skylight on the roof of a building in the southern part of the district.

The 5th WayneTech Cache in Old Gotham West is found on the balcony towards the top of a building on the southern side of the district.

The 6th Old Gotham West WayneTech Crate is found next to a water tank on the roof of a building in the southern part of the district. The Chest is guarded by mobs.

The 7th WayneTech Chest is found high up on the balcony of a building in the southern part of the Old Gotham West district.

The 8th WayneTech Cache in Old Gotham West is found on top of some stairs, under a water tank, on the roof of a building in the northern part of the district.

The 9th Old Gotham West Stud Crate is found next to two skylines, by the wall, on the roof of a building, and under another, in the northern part of the district.

The 10th WayneTech Chest in Old Gotham West is found by the ledge between the roofs of two buildings in the northern part of the district.

The 11th WayneTech Crate is found by the wall on the lower roof of a building, under a water tank, on the north side of the Old Gotham West district.

Another WayneTech Cache in Old Gotham West is found under a large pipe, in the corner, close to a skyline and a building's entrance, halfway up a building in the northern part of the district.

The 13th Old Gotham West WayneTech Chest is found on a balcony halfway up a building on the northern side of the district.

The first The Cauldron South WayneTech Cache is found in a tunnel, between the railroad and the wall, on the east side of the district.

The second Cauldron South WayneTech Cache is found between the large pipes halfway up the industrial building, in the northeastern part of the district.

The third WayneTech Cache in The Cauldron South is found in front of the warehouse doors, next to the large pipes.

How To Open the Cache:

• First, turn on the water by interacting with the yellow valve under the pipes.
• Then, use Gordon's Foam Sprayer to cover the pipe above the first crate to the right of the yellow valve.
• Next, use Batman's batarang to destroy the foam blocking the pipe above the crate to the far left and the foam blocking the pipe above the yellow valve.
• Finally, use the Foam Sprayer to block the two upper pipes on the right side of the yellow valve.

The 4th Cauldron South WayneTech Chest is found up on a walkway, above some large pipes, on the north side of the district.

The 5th WayneTech Crate in The Cauldron South is found between some crates on a ledge, halfway up a building on the northern side of the district.

The 6th WayneTech Chest in The Cauldron South is found under a large pipe, on a ledge halfway up an industrial building, on the eastern side of the district.

The 7th Cauldron South WayneTech Cache is found by a window, on the lower roof of a building above the railroad, on the southern side of the district. The chest is guarded by mobs.

Another WayneTech Cache is found in the corner of a building's roof, under the railroad and the stairs, in the southern part of The Cauldron South.

The 9th Cauldron South WayneTech Crate is found in front of the small building with the Tickets sign, next to a pillar on the lower level of a strain station on the southern side of the district.

The 10th Cauldron South WayneTech Crate is found in the corner of the lower roof of a building, on the southern side of the district. The Chest is guarded by mobs.

The 11th Cauldron South WayneTech Chest is found on a ledge by a building's wall (halfway up), in the middle of the district.

The 12th WayneTech Crate in The Cauldron South is found inside a locked garage by the road, in the center of the district.

How To Open the Cache:

• First, turn the yellow valve all the way to open the garage door and use Gordon's Foam Sprayer on the mechanism inside the garage to keep the door open.
• Then, pick up the battery between the garage and the truck and put it in the generator inside the garage.
• Finally, open the Cache.

The 13th Cauldron South WayneTech Chest is found next to some crates, under some stairs, on the roof of a building on the north side of the district. The Cache is guarded by mobs.

The 14th Cauldron South WayneTech Crate is found next to an antenna, on the roof of the building with the Cauldron Station sign, on the northern edge of the district.

The 15th WayneTech Chest in The Cauldron South is found next to some dumpsters in the small garage building, close to the Keystone Industries building, on the western side of the district.

The first The Cauldron North WayneTech Cache is found behind a car without wheels, in a small garage by the road, on the southern edge of the district.

The 14th Old Gotham North WayneTech Cache is found inside the Wayne Tower and can be obtained during the WayneTech R&D mission. To reach the chest, go through the vent in the floor in the starting area.

The first ACE Chemicals WayneTech Cache is found next to some stairs and computers in the room behind the elevator. To reach the chest, turn around after going down the elevator in the starting area, and follow the path to the right.

The second ACE Chemicals WayneTech Chest is found in the middle of a room behind a locked door to the right after crossing over some green acid and reaching a door with a red button. To reach the Cache, jump on the pipe over the acid to the right of the locked door, go forward, use Gordon's Foam Sprayer to plug the pipe leaking acid, and go through the newly revealed hole in the wall.

The third ACE Chemicals WayneTech Crate is found at the bottom of the room with the large fan blowing air up. To reach the chest, get on the ledge up by gliding on the airflow, turn around, throw a batarang at the target on the right side, and go down to the cache.

The 4th ACE Chemicals WayneTech Chest is found by the wall, between some computers in the corner of the room with the large purple teddy bear tank in the middle.

The 5th ACE Chemicals WayneTech Chest is found in a small room on the upper level of the room with the partly destroyed bridge and the burning pipes, while chasing the Red Hood One during the ACE Chemicals mission.

The second WayneTech Cache in The Cauldron North is found by the graffiti wall behind some boxes, under the bridge in the southwestern part of the district.

The third Cauldron North WayneTech Chest is found in a cage on the lower roof of a building on the western side of the district.

How To Open the Cache:

• First, go on the roof above the Chest, use R3 (PS5) to detect a lock you can destroy with a batarang, and pull the lever there to power up the Chest.
• Then, go back to the cage and drop onto the walkway to the left.
• Next, look for a locked vent that you can open with Batman's Bat Claw.
• Finally, go through the vent to reach the Cache, which you can now open.

The 4th WayneTech Cache in The Cauldron North is found next to a metal fence behind a large tank on the western side of the district.

The 5th Cauldron North WayneTech Crate is found next to some explosive tanks and the corner of the ACE Chemicals building in the northwestern corner of the district. The Crate is guarded by mobs.

The 6th WayneTech Chest is found next to some pipes and the main entrance to the ACE Chemicals building on the northwestern side of The Cauldron North district.

The 7th Cauldron North WayneTech Chest is found next to a vent in the ground and an alcove, in a warehouse in the northwestern part of the district. The Chest is guarded by mobs.

The 8th WayneTech Crate is found between the wall of a building and a large tank, in a parking lot on the north side of The Cauldron North district.

The 9th WayneTech Chest in The Cauldron North is found under some large pipes between two roads on the eastern side of the district.

The 10th Cauldron North WayneTech Crate is found in a small space under some large pipes, on a platform above the road in the center of the district.

Another WayneTech Crate in The Cauldron North is found high up on the roof of the building with the red Meyer + Hayes sign, on the east side of the district.

The 12th Cauldron North WayneTech Cache is found between two large pipes, on a platform above the water in the northeastern part of the district.

The 13th Cauldron North WayneTech Chest is found next to a water tank, on the roof of a building above the road, on the eastern edge of the district.

The second Batcave WayneTech Cache is found under the elevator on the western side of the Batcave, unlocked after the Chapter One Complete Mission. Make sure the elevator is on the upper level first.

The third Batcave WayneTech Cache is found under the platform leading to the bridge on the eastern side of the Batcave, unlocked after the Chapter One Complete Mission.

The 4th WayneTech Cache is found under some stairs in the southeastern corner of the Batcave, unlocked after the Chapter One Complete Mission.

The 5th WayneTech Cache is found under the upper walkway in the suits area of the Batcave, unlocked after the Chapter One Complete Mission.

The 6th WayneTech Cache is found next to the training dummies in the Training Area, which can be unlocked in exchange for Studs after returning to the Batcave upon completing the Home Sweet Home Mission.

The 7th WayneTech Cache is found between the Science Lab and the cave wall. The Science Lab must be unlocked first, and it can be done in exchange for Studs after returning to the Batcave upon completing the Home Sweet Home Mission.

The 8th WayneTech Cache is found next to the air vent and the waterfall in the Display Area, which can be unlocked in exchange for Studs after returning to the Batcave upon completing the Home Sweet Home Mission.

The 9th WayneTech Cache is found next to the waterfall, on the edge of the platform in the Clean Slate Area, which can be unlocked in exchange for Studs after returning to the Batcave upon completing the Home Sweet Home Mission.

The first Shreck's Department Store WayneTech Cache is found behind the large painting in the starting room. Use Catwoman's whip on the mechanism under the painting to reveal the chest.

The second Shreck's Department Store WayneTech Chest is found behind a locked room requiring a key. The key is found in the next room by breaking the desk and the objects around it.

The second Shreck's Department Store WayneTech Crate is found on an upper ledge in a hidden room. To reach the chest, go behind the pillar on the right while facing the Fashion sign in the room with the mime ambush, break the display case in front of the crawl space, go through, use Catwoman's cat to open the gate to the right, and push the cart with the crates.

The 4th WayneTech Cache in Shreck's Department Store is found behind the gate with the blue Pets sign above it, to the left of the room with the tilted red Shreck's sign. To get through the Pets gate, you must use Catwoman's Whip on the mechanism above it. Finally, use Batman's Batclaw to pull the WayneTech Cache to the ground. There is a mechanism on this side of the gate for you to get out of the room.

The 5th WayneTech Crate in Shreck's Department Store is found behind a red curtain in the Toys section (look for the red Toys sign), after taking care of a bunch of mimes, including a large one.

How To Open the Cache Behind the Red Curtain:

• First, step on the red button in front of the piano keys on the ground.
• Then, observe the keys that light green and play the same notes to open the curtain.
• Finally, go behind the curtain and open the WayneTech Cache.

The 16th Tricorner WayneTech Cache is found next to a water tank on the roof of a building on the western side of Tricorner.

How To Open the Cache:

• First, stand in front of the chest and press R3 (PS5) to notice two cables.
• Then, follow the cable to the right to find a lever on a wall. Catwoman can climb the wall and interact with the lever.
• Next, follow the cable to the left and go to the side of the small glass house. The glass here can be cut by Catwoman if you get close enough. Destroy the objects by the glass house first, so you have enough space.
• Finally, interact with the lever in the glass house and go back to the WayneTech Cache so you can open it.

The 15th Old Gotham South WayneTech Chest is found under some stairs, on the lower roof of a building, on the northern side of the district. The chest can be obtained after unlocking Catwoman during the Shreck's Department Store Mission.

How To Open the Cache:

• First, press R3 (PS5) next to the crate and follow the cable to the base of the building.
• Then, use Catwoman's Whip to unscrew the four golden nails so the lid opens.
• Finally, pull the lever and head back to the cache to open it.

The 16th Old Gotham South WayneTech Cache is found behind a billboard, on a lower edge, by the roof of a building on the north side of the district. The chest can be obtained after unlocking Catwoman during the Shreck's Department Store Mission.

How To Open the Cache:

• First, climb on the roof, press R3 (PS5) to spot two crates you can break to build the mechanism that you can use to operate the elevator by the roof.
• Then, use Catwoman's whip on the mechanism to lower the elevator with your partner on it.
• Finally, pull the lever when the elevator stops and head back to the chest to open it.

The 14th Cauldron North WayneTech Crate is found inside the locked garage next to the stairs by the road in the center of the district. The cache can be obtained after unlocking Catwoman during the Shreck's Department Store Mission.

How To Open the Chest:

• First, use Catwoman's whip on the mechanism above the garage door to partially open it.
• Then, use Catwoman's cat to enter the garage through the space under the partially opened door, and press the red button on the right side
• Next, enter the garage with Catwoman and cut the glass in the corner so you can push another red button.
• Finally, open the Cauldron North WayneTech Chest.

The first Arctic World WayneTech Cache is found on an upper ledge, above some water in the corner of the room, after passing the penguins spitting fire. To reach the chest, you must break the crate on the rock by the water, build a duck you can jump on, and get on the upper ledge.

The second Arctic World WayneTech Chest is found in a small cave behind some glass and a cage cart with an explosive mob. Look for the cage cart in the room with the blue Polar Bears sign. First, pull the cart out of the way, but be ready to dodge because it will explode. Then, cut the glass with Catwoman and go through to obtain the crate.

The third Arctic World WayneTech Crate is found in a hidden small room behind an explodable snowman. Look for the explodable snowman in the room with the blue Polar Bears sign. To reach the chest, throw a batarang at the snowman first (from a safe distance).

The 4th WayneTech Cache in Arctic World is found on the ledge behind the locked security door in the Arctic Explorers exhibit after disabling the unbreakable cameras. To open the security door, use Catwoman's cat to go through the cat door under the ledge, and when you reach the fans, switch to Batman. Then, jump on the table by the window through which you can see the area where the cat is, and throw a batarang at the target through the hole in the glass to stop the fans. Next, switch to the cat, pick the key on the ground (and the Blue Stud while you are at it), past the fan, and bring it back to Catwoman by going forward. Finally, use the key to open the security door and open the Cache.

The last Arctic World WayneTech Cache is found behind the machine spitting ice and the breakable wall immediately on the right side after entering the Arctic Explorers exhibit, after disabling the unbreakable cameras. To obtain this chest, first go further in the room and press the red button by the container. Then, pick up the yellow valve and put it in the socket next to the chest location. Next, turn the valve, then blast the wall using Batman's Explosive. Finally, open Arctic World WayneTech Cache #5.

The first The Big Dukeroo WayneTech Cache is found in the back room of the dinner with the green walls on the left side of the parade. To enter the dinner, climb the left side wall with Catwoman and pull the lever. Once inside, use Catwoman's cat, go through the cat door, pull the lever by the door, and go into the back room to open the WayneTech Chest.

The second Big Dukeroo WayneTech Chest is found in a small building in an alley on the left side of the street with the parade. To enter the small building, use Batman's UV Vision next to the man sitting on the ground by the blue stretcher on the main street, follow the tracks, and move the metal sheet. Finally, open the WayneTech Crate.

The third Big Dukeroo WayneTech Crate is found in an apartment on the third floor of the building to the left of the tropical island. To enter the apartment and open the cache, cut the glass of the different window with Catwoman.

The 4th WayneTech Cache in The Big Dukeroo is found in the back room of the cafe with the cameras inside (Cafe Beans), on the left side of the street with the parade. To enter the cafe and open the chest, you need to cut a hole in the window with Catwoman.

The 5th WayneTech Chest in The Big Dukeroo is found in the back of the white and blue van with Gotham Globe written on it, on the right side of the street with the parade. To open the van, you must use Batman's batclaw on the handle on the back door.

The first Newton WayneTech Cache is found between some crates inside a warehouse by the water on the southeastern side of the district.

The second Newton WayneTech Chest is found in the corner of a building's roof on the southern edge of the district. The chest is overlooking the bridge leading to Old Gotham West.

The third Newton WayneTech Crate is found on the edge of the bridge leading to the Water and Power facility on the eastern side of the district.

The 4th WayneTech Cache in Newton is found on a lower ledge, by the wall of the Water and Power facility, on the eastern side of the district.

The 5th WayneTech Crate in Newton is found next to some stairs and the Gotham Area Port Authority building in the middle of the district.

The 6th WayneTech Cache is found behind a giant statue next to the Gotham Museum on the north side of the Newton district.

The 7th WayneTech Chest in Newton is found by a wall, between a dumpster and some crates, close to the water on the north side of the district.

The 8th WayneTech Cache is found next to a door on a patio, halfway up a building in the center of the Newton district.

The 9th Newton WayneTech Cache is found on top of the bridge structure connecting the two buildings in the northwestern part of the district.

The 10 Newton WayneTech Crate is found next to the helipad on the roof of the building by the northwestern edge of the district.

The 11th Newton WayneTech Cache is found next to a stack of crates on the lower roof of a tall building on the western side of the district.

The 12th WayneTech Chest in Newton is found under a leaking water tower on the roof of the Aventine building, on the western side of the building.

How To Open the Cache:

• First, use Gordon's foam sprayer to plug the three leaking holes of the water tower.
• Then, press R3 (PS5) to highlight a box (on the roof) you must destroy and pick up the battery that remains.
• Next, place the battery in the socket with the red light.
• Finally, the worker opens the door so you can obtain the Cache.

The 13th WayneTech Chest is found high up on the edge of a ledge above the train station on the western side of the district.

The 14th WayneTech Chest is found between some stacks of crates in front of the Wharf Restaurant, next to the water on the western edge of the Newton district.

The first Gotham Village WayneTech Cache is found by a wall with posters, some stairs, and the water in the northeastern corner of the district.

The second Gotham Village WayneTech Chest is found by the wall of the Hippodrome on the side with the water, on the northern edge of the district. The chest is guarded by mobs.

The third Gotham Village WayneTech Crate is found on the edge of the roof of a tall building on the northern side of the district.

The 4th WayneTech Cache in Gotham Village is found behind a breakable wall, high on a platform above the road, on the eastern side of the district.

How To Open the Chest:

• First, jump above the electricity to reach the lever.
• Then, pull the lever and use Batman's explosive spray to destroy the wall.
• Finally, open the crate.

The 5th WayneTech Cache is found on the edge of a building's roof in the southeastern corner of the Gotham Village district.

The 6th Gotham Village WayneTech Chest is found beside a wall with graffiti in the corner of the park on the southern side of the district.

The 7th Gotham Village WayneTech Crate is found on a ledge towards the bottom of the GBC building in the southern part of the district.

The 8th Gotham Village WayneTech Crate is found next to a skylight, in the corner of a building's lower roof, by the water on the southern side of the district.

The 9th WayneTech Cache in Gotham Village is found behind a blue sign, in the corner of the lower roof of the Gray Towers, on the western side of the building.

The 10th WayneTech Crate in Gotham Village is found in a gazebo by the water, in the park in the center of the district.

The 11th WayneTech Chest in Gotham Village is found in an alcove in the underground tunnel with the entrance on the western edge of the district.

The 12th WayneTech Crate in Gotham Village is found next to a skylight on the lower roof of the Goth Corp building, in the northwestern part of the district.

The 13th Gotham Village WayneTech Crate is found on a large pillar in the water, by the bridge leading to Arkham Asylum in the northwestern corner of the district.

The 14th WayneTech Crate in Gotham Village is found on the top level of the tower on the edge of Arkham Asylum and in the corner of the district.

The first East End WayneTech Cache is found by a graffiti wall, down some stairs in a parking lot, on the western side of the district.

The second East End WayneTech Chest is found on the lower roof of a building, under the railroad on the western side of the district.

The third East End WayneTech Crate is found by the fence, in the corner of the basketball court in the northwestern part of the district.

The 4th WayneTech Cache in East End is found by a wall, in the corner of the roof of the GCPD building on the northern side of the district.

The 5th WayneTech Chest in East End is found between two buildings, by the wall, on the northwestern side of the district.

How To Open the Chest:

• First, use Catwoman's whip on the mechanism on the right side of the shutters to reveal 5 battery sockets. You can use Batman's X-Ray Vision by the tools to see in which sockets you need to insert batteries.
• Then, destroy the cobweb above the chest, pick up the battery, and place it in the first socket from left to right.
• Next, go into the small alley to the right of the sockets, use Batman's batclaw on the handle on the panel in the corner, pick up the battery, and place it in the 4th socket from left to right.
• Finally, you can now open the chest.

The 6th WayneTech Crate in East End is found under a support beam, close to a vent on the lower roof of the Gotham Hospital building, on the western side of the district.

The 7th WayneTech Crate in East End is found on the lower roof of a building between two streets on the western side of the district.

How To Open the Chest:

• First, go on the western street of the building, get in your vehicle, and blast the two breakable walls under the water tower.
• Next, use Batman's batclaw on the upper handle and then use it on the lower handle.
• Then, use Batman's explosive spray on the breakable wall at the base of the building, on its south side.
• Finally, use Batman's batclaw on the handle to open the East End WayneTech Cache.

The 8th East End WayneTech Chest is found by the wall, on the lower roof of a building above the road, on the north side of the district.

The 9th East End WayneTech Crate is found on the edge of a building's roof, overlooking a water tower, in the middle of the district.

How To Open the Chest:

• First, drop down to the lower roof with the water tank.
• Then, use Gordon's foam sprayer on the mechanisms by the yellow rotating wheels so that you complete the missing parts of the cable.
• Next, pull the lever with the cable.
• Finally, go back up to open the WayneTech Cache.

The 10th WayneTech Cache in East End is found next to a skylight and a vent, behind a billboard, on the roof of a building on the southern side of the district.

The 17th Old Gotham South WayneTech Cache is found in the courtyard by the greenhouse at the Gotham Zoo, in the southeastern part of the district.

The 11th East End WayneTech Chest is found by some windows under a billboard, on the side of a building in the eastern part of the district.

The 12th East End WayneTech Crate is found above an alley, on a lower ledge between two buildings, on the eastern side of the district.

The 13th East End WayneTech Chest is found beside a graffiti wall, close to some stairs and a statue in the southeastern corner of the district.

The 14th East End WayneTech Cache is found under a water tank on the roof of a building, on the eastern side of the district.

The 15th East End WayneTech Cache is found by the support beams of the platform next to the hot dog stand in the eastern part of the district.

The 16th East End WayneTech Crate is found in the corner of the pier, under the girl with the ice cream painting, in the Amusement Mile park on the eastern side of the district.

The first Tricorner WayneTech Cache is found by the Pier A building in western Tricorner.

How To Open the Cache:

• Grab the battery from the socket at the base of the large building.
• Place it into the socket by the wall on the other side of the Pier A building.
• Use Batman's batarangs to shoot the small red targets on the walls of the building to release the electricity.
• Go around the building, hitting all targets.

The second Tricorner WayneTech Cache is found on the roof of a tall building on the northwestern side of Tricorner.

How To Open the Cache:

• Use Batman's grapple to reach the roof.
• Approach the cache and interact with it.

The WayneTech Crate is found by some blue containers at the end of the western dock. Simply get close to the cache and open it.

Another WayneTech Cache in Tricorner is found on the lower roof halfway up the building on the northern side of the district. Look for it near a large tank. Use the Grapple to reach the roof and open it.

The Wayne Tech Cache is found in the courtyard of a building in central Tricorner.

How To Open the Cache:

• Head to the southern building and look for an enclosure.
• Stop the leaking tank using Jim Gordon's Foam Sprayer.
• Put out the flames using the same gadget.
• Pull the lever on the wall.

Another Wayne Tech Crate can be found on the roof of a smaller building in central Tricorner. Simply climb to the roof and open it. 

The seventh WayneTech Cache is found on the lower roof of a building in central Tricorner. The Cache is guarded by several thugs. Once you defeat them, you can open it without having to solve any puzzles.

The eighth Tech Cache is found behind the benches on the sidewalk in southern Tricorner.

The ninth WayneTech Cache in Tricorner is found halfway up the GCPD building, on a ledge under the GCPD neon sign.

The Wayne Cache is found on the upper floor of a building under construction, in central Tricorner. Look for it on the floor under the roof.

The eleventh Wayne Tech Cache in Tricorner is found on top of the Fish Factory on the southeastern side of the district. Climb on top of the FISH sign to spot it.

Another Wayne Cache can be found on the roof of the Hotel Parvenu. Look for it between two pipes. The hotel is located on the eastern side of Tricorner.

The twelfth Tricorner Cache is found on the upper roof of the Iceberg Lounge. Look for it near the crystal.

The fourteenth Wayne Tech Crate is located by a fence in the covered area outside Falcone's Fishery in eastern Tricorner.

The first WayneTech Crate in the Iceberg Lounge Mission is located in the corner of the security room.

The second WayneTech Cache in the Iceberg Lounge Mission is found behind the locked gate after going through the crawl space.

The third WayneTech Cache in the Iceberg Lounge Mission is found on an upper platform in Falcone's House of Fun, behind two blue cylinders. You can go through the cylinders to reach the cache.

The fourth WayneTech Cache in the Iceberg Lounge Mission is found in the corner of the room you can reach by going through the hidden vent in the large ball pit.

The fifth WayneTech Cache in the Iceberg Lounge Mission is found behind the small locked gate above the bouncing castle. To reach the cache, break the lock with a batarang and jump on the bouncing castle.

The first Batcave WayneTech Cache is unlocked automatically after you build the Gadget Bench during the Spelunking Mission.

The 15th Wayne Tech Crate in Tricorner is located on the roof of a building on the northern side of the district. To be able to open it, you need the Batclaw unlocked via story progression, after you visit the Batcave.

How To Open the Cache:

• After you get the Batclaw, return to the roof and remove the clamp in front of the generator by pulling it.
• Push the generator on the upper platform in front of the green light on the wall.
• Now, head to the other side of the roof and push the second generator in front of the second green light on the wall.

The first Old Gotham South Tech Cache is found in the southern park, standing on a square gazebo.

The second Old Gotham South WayneTech Cache is found in the parking lot by the road leading to Old Gotham West.

The third WayneTech Cache is located by the inner wall of the park in western Old Gotham South. Look for it on a small hill inside the park.

The fourth WayneTech Cache in Old Gotham South is found on the lower street level in the northwestern corner of the district. Look for it behind some crates in the corner of the lower brick wall.

The fifth cache is found on top of a large building. It is protected by a group of goons.