We did that snorkel tour and were glad we did. It sounded touristy, but we went and loved it! The location, six miles out, is beautiful, there were around 33 stingrays on this sandbar and the water was 4-6 ft. deep. I am 5'4" and could touch my toes. You are wearing snorkel vests that keep you afloat and so you don't have to touch bottom or worry about stepping on the rays. It was not scary at all, just fun. It was an experience not to miss. The water is absolutely crystal clear and there is nothing on the bottom was fine, white sand. I could see my feet. You can rest on the boat if you like.