im planning for graduation
I have also been to st maarten, on the dutch and french side, and yes this is true, there is a few nude beaches there, so no worries. If i may be so bold also to suggest….. i myself cannot sunbathe with a bikini top on, i feel like im wearing a sweater, and those dreaded tan lines..yuck, patuey!!!! So, myself i have been to quite a few islands but even say a place like cuba where it is more conservative, you can still tan topless, we would just walk down the beach a bit away from families and crowd, also since you are are a young girl and will be im assuming with some girls your age you wont want a pack of kids running circles around you anyways.
You may get some looks, oh well, but this is probably the most cost efficient place to travel, st maarten although nice, its pretty boring, not much in the way of night life like other islands and it is very expensive to stay there. So wherever you go, you are a paying guest like all the others so dont be shy to go topless, even if its not a topless beach, as i mentioned if you walk out of the traffic areas no one will see you anyhow…… Have fun!!!