[Bungleau]

You can jump up both walls to retrive the jindols if you have sufficiently high athletics. You can also stack crates to build ladders to get there... and jumping off a crate or two may be enough to let you up the rest of the way.

However, I can tell you that you can't take one path down and follow the other one back up. I tried it once. The other path just doesn't exist -- you can climb up, but you're in utter blackness.