Point Nepean marks the southern point of The Rip (the entrance to Port Phillip) and the most westerly point of the Mornington Peninsula, in Victoria, Australia. It was named in 1802 after the British politician and colonial administrator Sir Evan Nepean by John Murray in HMS Lady Nelson. Its coast and adjacent waters are included in the Port Phillip Heads Marine National Park, while its land area is part of the Point Nepean National Park. The point includes Cheviot Beach on its southern side, famous as the site of the disappearance of Australia's then-Prime Minister Harold Holt.