I did my first ever dive here, and had a great experience. I'm not certified, but they offer a less deep "discovery dive", which is what I did. The divemaster (Sylvie) gave us an efficient but comprehensive briefing before getting on the boat (which you have to swim a short ways out to), and helped me with everything. She literally held my hand the whole time we were underwater and was regularly checking in with me; I felt completely comfortable at all times, and would highly recommend this for someone wanting to experience their first dive if you're in St. Martin.
My girlfriend and her dad (both certified) also dive with us, and enjoyed the experience as well. St. Martin isn't renowned for it's diving, but this was apparently among the island's best. Maybe more experienced divers would be slightly less enthused, but I thought it was fantastic!
Took a catamaran to Prickly Pear. What a beautiful & quiet island. Crew on winner touch were very friendly & nice. Was a little misled by "open bar" ad. It's just 2 beer selections & rum punch. Lunch was pretty good.