Diving Yucatan

PADI 5 Star IDC centre in Mérida (with a second base in Mahahual) running all-inclusive cenote packages of one, two, four or six dives and PADI courses up to Cavern Diver, Sidemount and TecRec. Its published cenote rules: full-cave-certified guide, max 4 divers per guide, daylight zone only, max 21 m (30 m in open-water areas) and 60 m from the surface, no decompression.