I think we could help you better if you gave us a general idea of where you are staying. There could be a great beach very near there. To me, it's WAY too much to go to St Barts and Anguilla in one trip. I would agree with another poster, Pinel is not particularly 'isolated'. The best 'isolated' beach on SXM to me is Happy Bay, but it is a hike over from Friars Bay, and is a favorite of we naked folks, so perhaps not the best beach for you.