If you are going to a nude beach to "hook up" and be turned on by someone -- you are better off going to resorts like Hedonism and places like that.
http://www.aanr.com/ is a pretty comprehensive site that explains the experience.
Rarely will you have titty gawkers, most resorts will not let single males in - it tends to be couples, families and single women.
It's something that everyone should do at least once in their life, it's rather liberating