Do you by any chance remember the book about Robinson Crusoe by Daniel Defoe? This is an exciting narration about a man who accidentally found himself on an uninhabited island and spent really much time being there. He had to fight off wild animals and find food and water to survive, he met a really good friend he called Friday and had lots and lots of adventures there. Nowadays this book sounds like an absolutely unimaginable situation, but not for these guys who deliberately decided to spend a day on a deserted island. Watch how they did it!