Who was the Australian who traveled round the world on the travel channel?

15 - 18 years ago there was this show on the travel channel that I have been trying to find for a while, but I can not remember the name of the guy or the show. He was Australian, and he traveled around the world on his own makeshift boat. It was like bare bones travel. I think it was filmed in the 70s or 80s.Who was the Australian who traveled round the world on the travel channel?was it the Leland brothers?