Included in the price of the day trip is: boat ride, lunch, a fully-stocked bar, including wine, beer, spirits, rum punch, soft drinks & water, snorkeling gear, guided tours and transfers to and from your hotel, so you really don't need much else.

Make sure to pack your swimming gear (including towel), sun screen, your own snorklimg gear if you'd prefer to use it, and some warm clothes for the journey home. And don't forget your camera!