Make your way to the Marriott Frenchman's Reef Resort to meet your kayaking guide and small group of 18 people or less.
Try out your clear-bottomed double kayak with your partner and learn some paddling techniques from your guide before taking to the water. Glide into the inky night toward Pirate's Cove. Your see-through kayak is retrofitted with a ring of powerful LED lights that create a 5-foot (1.5-meter) halo for viewing creatures swimming below. Enjoy the peaceful ambiance of being out on the water once all the sun-seeking daytime activity has died down.
Flying fish, sea turtles and stingrays are all active at night, so keep an eye out for those shadowy forms in the clear water. Look out for fruit bats swooping over the surface of the water as your guide fills you in on the history and ecosystem of Charlotte Amalie Harbor. The shallow reefs here are feeding locations for all of the surrounding sea's nocturnal animals, so you'll see plenty of activity.
After 1.5 hours, return to the Marriott, where your nighttime adventure ends.