Mexico – Yucatán Cenotes (Mérida) – 15 dive sites: Deep, open cenotes on the Ring of Cenotes south of Mérida – rappel entries, roots and light shafts far from the crowds.
Mexico – Riviera Maya Cenotes – 24 dive sites: Light beams, haloclines and hydrogen-sulphide clouds in the world's longest underwater caves, from Puerto Morelos to Tulum.
Mexico – Cozumel & Caribbean Coast – 22 dive sites: Drift dives along Cozumel's walls, winter bull sharks off Playa del Carmen and the underwater sculptures of MUSA.
