There is a natural pool on St Maarten if it wasn’t affected by Irma. It’s a bit of a trek but secluded and beautiful. Do a search for “Devil’s Cupper” and you should find pictures and a link to a map that will give you the location. It is on Back Bay.
Be Happy! Simply because you deserve to be. 😁 “The only BS I need in my life is: Beach and Sunshine"