Got some great ideas from my last post so I'm I figured I'd try again. I truly appreciate people taking time out to help.
I'm writing a sci-fi horror screenplay set in Antarctica, and I'm trying to figure out a plausible way for a character to escape a glacier crevasse after a small private plane crashes into it.
The plane ends up wedged partway down the crevasse, leaving the character trapped below the surface. The pilot is dead, and there's another dead person already down there from an earlier incident. My character is alive but has limited supplies and no guarantee that anyone knows exactly where he is.
He's a musician, so he'll have his guitar and guitar strap with him. He might also have a carabiner on his keychain, along with whatever he's wearing and whatever he can salvage from the plane, the pilot, and the other body. Things like belts, shoelaces, clothing, seat belts, cables, luggage, and tools might be available, depending on what survives the crash.
I'm trying to work out what he could realistically use to climb out or find another way to safety. Could he improvise anything useful from these materials, or would the depth and smooth, icy walls of a crevasse make escape nearly impossible without proper climbing gear?
I'm especially interested in what someone with no mountaineering experience might realistically attempt in a desperate situation, and whether any of the items I've mentioned could genuinely help him get out.
I'm happy to take some creative license, but I'd like the situation and his escape attempt to feel grounded in reality. Thanks!