Swimming is easily the most popular water sport in Australia.
The second most popular sport in Australia is cricket.
Tennis is popular in Australia because it has always been the most popular sport in Australia since it was introduced in 1870's. It is a great spectator sport.
In Australia the 3rd most popular sport is ultimate frisbee. it is behind soccer and rugby
One of the most popular water sports in Australia is surfing. Australia's coastline offers the surfer a good challenge with high waves and great weather.
The most popular sport in Australia is AFL (Aussie Rules Football)
Sailing is definitely one of them.