Look up The guy who died in nutty putty cave. It’s a mapped cave but very tight squeezes. On YouTube there’s some guys in the early 2000s in there with a video camera. At one point they go past the point where the kid died. This was before he died though. Basically it’s just a hole in the wall. This kid took a wrong turn or something. Slid down into this hole. Had his arms and legs pinned. He was facing downward basically on standing on his head. They couldn’t get him out. It got a lot of coverage. After that they dynamited the cave shut. They had live news coverage from the outside while the guy was in the cave dying. Plus he was a medical student or a doctor or something so he knew exactly how he was gonna die https://youtu.be/K-pKKq0Y1XA This is part 1 of the video of the guys exploring ir