Two thirds of the French island of Corsica is covered in mountains. When Chris Fragassi was 13, he traveled there by himself to learn about survival the hard way. Three years later he was guiding tourists along the island's famous GR 20 trail, a 112-mile trek that takes most hikers more than two weeks to complete. Since then he's become a survival expert working with the military, the Canadian Red Cross, Parks Canada, law enforcement agencies, and more, teaching them his techniques. He's also been a scuba instructor and a bush pilot, flying through the skies of British Columbia and the Yukon.

Now he's consulting on a video game.