On December 17, 1967, while swimming off Cheviot Beach, Victoria, he vanished without trace. For two days Australia remained without a government until [[John McEwan]] was chosen as caretaker, amid a constitutional crisis. | On December 17, 1967, while swimming off Cheviot Beach, Victoria, he vanished without trace. For two days Australia remained without a government until [[John McEwan]] was chosen as caretaker, amid a constitutional crisis. |