Missing prime mister of Australia

For a politician, Harold Holt was notoriously private, relishing the opportunity to escape from the public eye to swim and fish in the ocean. When he disappeared off Cheviot Beach in Victoria, in mid-December 1967, what has been described as "one of the largest search operations in Australian history" was launched. Conspiracy theories — he ran off with a mistress, was captured by the Chinese, was assassinated — abounded. He is suspected to have drowned in the churning waters, but despite the massive search, his body was never found.