Combine a kayak trip with treasure hunting on this 4-hour independent GPS-guided ‘geocaching’ tour around St Thomas' Mangrove Lagoon. Board your kayak with a GPS and treasure map and search for the hidden 'caches' — containing messages or trinkets — as you paddle around the mangroves, reefs and cays of this unspoiled marine sanctuary. Stop to snorkel, watch for rays, pelicans, fish and other wildlife as you go, and with luck, you’ll find all the caches. Upgrade to an 8-hour trip and enjoy more time to paddle, snorkel and search!