Spend two days diving with qualified instructors as you explore the area around "Dos Ojos," a flooded freshwater cave system with 28 sinkhole entrances called "cenotes." Over the course of two days, participate in four dives. First, witness the diverse marine life of two Caribbean reefs during two separate dives. On the second day, head into the jungle to explore the cenotes in two dives. Accommodation is not included in the cost of the tour (though pickup and drop-off at your Riviera Maya hotel is).