I got lost in a swamp in the middle of my own small country (Estonia) for 2 days and I was only 10km from the closest place of people. Problem was, I kept going in circles, phone battery was dead, and I should've been smart enough to follow the sun to figure out how to go straight, but these days people of my age are lucky to remember that you can drink swamp water because seaweed is a really good filter thanks to watching Discovery Channel.