I am trying to establish what number of yachtsman sail past the Southern part of Western Australia. I figure when they get to Constitution dock in Hobart quite a few don''t simply turn around and head back but may be inclined to head West around the Souther part of Western Australia. Our local council ( Albany )is looking to construct a marina suitable for visiting yachts. Obviously yachts may also pass by on Easterly headings. Any help would be appreciated.