Famous Vincent Elvira Glass Bottom Tours (876) 473-6910. Call him or hang out on the cliffs at Xtabi, Pee Wees, or Blue Castle and he will pick you up with equipment and knowledge of the reef and marine life. Rookies or not, he will keep you safe and go in the sea with you to show and explain what lives where and again keep you safe and keep the coral reef safe-do not touch! The three properties mentioned have no problem with you hanging out there waiting on Vincent to cruise by (or call him) as long as you purchase beverages or a meal (better yet, tour the property for a stay there your next trip and become a cliff dweller).