We booked with Soualinga Destinations. Tour of the island by boat with snorkeling and a great lunch in a restaurant in a bay on the French. Due to a recent storm the water usualy crystal clear up to 20 feet had only about three feet visibility. No matter Captain Bob is quite a character and showed us a good time. The size of the boat, 12 passenger, means you have access to protected natural reserve. You go to Tintamarre Island where sea turtles swim around as you snorkel. Pinel Island where you'll find a boutique with unique souvenirs. St-Maarten Airport as you saw on You Tube but in our case the plane flies right over boat as it lands. All in all a good excursion that could have been a great one with the snorkeling.