Walk up the hill, more exercise.
Stand in a locked room with all deadly species of snakes, spiders, ants, disease carrying mosquitoes, pissed off rats, deadly viruses and bacteria for 48 hours with no food or water OR swim with a kronosaurus, megalodon, L melville, mosasaurus, pliosaurus, Pissed off giant squid, box jellyfish, machimosaurus, a swarm of pufferfish, eurypterids, blue ringed octopuses, barracudas, coral reef snakes, swarm of stingrays, very pissed off great white, tiger, ocean whitetip and bull sharks, a swarm of electric eels and a swarm of stonefish