There is a group (including me) that has played pickleball at Rainbow Beach Club in Cupecoy. We added yellow tape to the tennis court there to mark the lines. Alas, I will be moving to Porto Cupecoy in September, and I don't think any of the other members of the group will be on island in October.
We didn't know of any other folks playing pickleball on the island, so we used to joke that we were playing for the St. Maarten national championship. <img src="http://www.traveltalkonline.com/forums/images/graemlins/Grin.gif" alt="" />