We took a Princess tour called BOSS, the Breathing Observation Submersible Scooter. You sit on an electric underwater scooter with a clear diving bell over your head. You can breath normally and cruise 8 feet underwater. It was a blast. We went over to an area where there were lots of fish. The guides then put our fish food and hundreds of fish appeared right in front of our eyes. We were then able to do some snorkeling before heading back to shore. We did some shopping and then returned to the ship to watch the late comers return.