Find you way to Yacht Haven Grande Dingy Dock, located on Long Bay Road in Charlotte Amalie, in time for your departure. Be sure to bring along sunglasses, a swimsuit, towel, and some sunscreen.
Climb aboard your boat, the Island Girl, for the sail to your snorkel destination. Relax on board, enjoy the scenery, and feel the tropical breeze along the journey, which will take about 1 hour and 15 minutes.
Once you arrive, the captain will anchor the boat and give you a short orientation to the sport of snorkeling. He'll also fill you in on what plants and animals you may see during your underwater exploration, which will last about an hour.
When you've had your fill of snorkeling, climb back aboard the Island Girl and dry off. Munch on some light snacks and grab a drink from the open bar, which features rum punch and beer as well as soda and water.
Return to your original departure point for the conclusion of your sailing excursion.