Our favorite excursion is one we do ourselves. In St. Thomas, we get in a taxi and go to Coki beach. Costs $20. each way for the two of us. At Coki we love to feed the fish. You CAN pay about $100. for two of you to take HAL's excursion to Coki. If you do, you get to watch someone else feed the fish, but what's the fun in spending twice the money to watch someone else do that?