You can rent a yatch, no need to own :) (though it's nice - but yatchs are costly to maintain!).
One of my uncles rented a yatch to sail on northern Australia (the Whitsunday islands), from his description, it sounds amazing (much like you described, white sandy beaches, awesome weather, nice sailing). He does own a yatch and a sailing license back home though, I think at least the designated captain must have a license.
One of my uncles rented a yatch to sail on northern Australia (the Whitsunday islands), from his description, it sounds amazing (much like you described, white sandy beaches, awesome weather, nice sailing). He does own a yatch and a sailing license back home though, I think at least the designated captain must have a license.
http://en.wikipedia.org/wiki/Whitsunday_Islands
Edit: remember the quote "A boat is a hole in the water into which you throw money"