Yes, glass bottom boat tours included with your stay, just sign up at the water sports hut. No catamaran cruise though. Just an FYI... we love going out on the boats for snorkeling, etc.. but the glass bottom boat really made us sick, and about 3/4 of the others too. Not sure if it was just that day or what, but looking thru that glass really bothered us, we were queasy the rest of the afternoon. The captain said to be sure and look up at the horizon every so often next time, so maybe we'll try it when we return to CSS in December. It was beautiful though, could see a lot through the glass.