One of the most notorious programmes in British TV history, Naked Jungle celebrated World Naturism Day with an all-nude assault course competition. Host Keith Chegwin later described it as "the worst career move I made in my entire life".
Known as "The Crystal Maze" for nudists, the 'Naked Jungle' included a series of activities (like an assault course) that the contestants had to compete over, with the twist that everyone (host included) was buck naked, with the exception of any safety gear. The winners would receive £2,500 each.—Bob the Moo & J. R. Dickson