This cavern can only be accessed by successfully unlocking the Shrine of the Sight. To do this, the player must first confirm the ownership of two numbered cubes that follow the criteria:
- One numbered cube MUST have the number 12 on it, and the other cube MUST have the number 13 on it.
- Both cubes MUST have a gray texture. To achieve a gray texture with cube 12, the cube needs to be opened until the 22nd box, which means it has to be opened 21 more times after the unboxing of the BIG GIFT. To achieve this with cube 13, the cube instead needs to be opened until the 23rd box, which means it has to be opened 22 more times after the unboxing of the BIG GIFT. The grey texture should have a similar shade to this color:
After this, the player must bring the two boxes to the Shrine of the Sight, which can be accessed after blowing up the crack at the back wall of the Rock Bridge Cave with dynamite. In the shrine, there are two holes in the ground, which contains lava at the bottom. The player must first drop the #12 cube into the left hole (NOT the shrine's left, the player's left, facing the door of the shrine). After this, the player must drop the #13 cube into the right hole.
If done correctly, players should immediately hear a grinding noise, as the door of the shrine slowly opens up. It will lead into a dark tunnel large enough for Vehicles to go through. The player must take a right turn shortly after the entrance, and it will lead the players into the cavern.
For more info on how this shrine was solved, visit Jerricks' blog post (slightly outdated).Note: it is actually possible to access this cavern using glitches and/or exploits. The only problem is that the cavern won't spawn if this is done. The in-game scripts that run the cavern only activate after unlocking the shrine correctly.The cavern bears a resemblance to the Cavecrawler Cavern, round and with a flat center but not deep. At the center, you can find a slate material wedge with the painting Bold and Brash on it (after opening the shrine correctly). Only one painting is present per server, though some have said that it regenerates after 30 minutes; when a new player enters the Shrine. The painting will be unclaimed so anyone can take it, it is best to retrieve the painting on a private server. On the roof, there's a hole or glow brick with sunlight shining the painting, you can take a look the photo of it below.