Meet your guide and group at the Agua Clara Diving Shop on Av. Coba in Tulum. From there, board your tour vehicle and get ready for swimming and snorkeling at three different sites, each representing a different ecosystem.
First, head to the beach at Tulum Bay, where you hop on a boat and cruise to a reef in front of the Tulum Ruins. Swim there for a while and then head to Casa Cenote, known for its clear waters and schools of colorful fish.
Afterward, make your way to the Sac Actun Cenote, where you spend roughly an hour swimming and snorkeling near one of the longest underground river and cave networks in the world. Enjoy lunch and then relax on the drive back to Tulum and the original departure point.