The history and details behind the disappearance of Australian prime minister Harold Holt, with conspiracies ranging from a CIA assassination to a Chinese spy. On a hot summer day in 1967, the Australian Prime Minister took a swim on a private beach with his friends but never made it back to shore. After a massive manhunt, the disappearance that stunned the nation sparked many theories about the Prime Minister’s whereabouts. Today, we’re taking a look into the disappearance of Harold Holt. Sensitive topics: suicide