Several years ago, in St. Thomas, we did an excursion that was named a "turtle snorkel". We went out on a catamaran called "The Cat" and then snorkeled. I don't see any sort of "turtle snorkel" listed in the excursions now, but I do see one that's a catamaran and snorkel. I'm wondering if that's the same one. Has anyone gone on this excursion recently that can provide some insight? We really loved snorkeling with the turtles. Thanks.