To get ready to climb Everest, I did a lot of hill running with a daypack on and a lot of underwater swimming. I would swim a couple of lengths underwater and then a couple above. It gets your body going with limited oxygen.
Textbook survival says stay still, don’t take any chances, wait for rescue. That’s a boring TV show. My thing was always, “Listen, shoelace, dead squirrel and no other way down this rock face. You can do this!”
