I've been on this one, not Sandy, but maybe I can help. Your cabin , step in and fall onto the bed. I slept on deck on the net a couple of times. All you do is eat, sleep, snorkel and enjoy the beautiful scenery. They stop at little islands and you do get off and shop or snorkel or whatever you want to do.
The food is delicious, not normal camping food , but healthy good food. All u need is just what you said, shorts, t's, bathing suits. U will eat 2 meals out. shaggy