The Disappearance of Harold Holt

The Australian Prime Minister, Harold Holt, disappeared after going for a swim in the ocean on December 17th 1967 - never to be seen again. Susan Hulme has been speaking to Martin Simpson who was with the group that went to the beach with the Prime Minister that day. Photo: Harold Holt on the beach with three women the year before his disappearance. Credit: Evening Standard/Getty Images