hi there,
Cupecoy Beach is one that offers the option to sunbath totally nude but if you wish to be nude, you can do so at the far western edge of the beach, which is of course the clothing optional area.
Also, many travel guides state that
Cupecoy beach is a gay beach, however, it is not officially a gay beach and all are welcome here. As with any beach in St Martin or anywhere, some couples may be gay and some may not be.