We went on the Mayan Adventure tour offered in the pamphlets in the hotel. My husband and myself and our 4 teens all enjoyed the day. You get picked up at your hotel and driven to Yal Kul lagoon for the first snorkel. This is an underground river joining the ocean. Saw Turtles and a Barracuta. Quite a swim out to the reef though so we wre moving alot and I would have preferred to have had more time in the lagoon with the colourful fish.
the next place was a cenote cave and that was exciting. Just an open cave, no tunnels or anything too scary. Beautiful! Last was an open cenote and the ritual sacrifice of jumping 35 feet into the lake. Well I used the stairs.... Lunch included and it was a great day.