Cenotes (Dos Ojos, Cenote Azul, Gran Cenote)

The Yucatán’s signature swim

A cenote is a freshwater sinkhole, where the limestone roof of an underground cavern has collapsed to reveal startlingly clear water below. They are the Yucatán’s calling card and, for many visitors, the best day out from Playa del Carmen. Several of the famous ones sit a short drive or colectivo south towards Tulum: Dos Ojos and Gran Cenote for clear, cave-fringed swims and snorkelling among shafts of light, and Cenote Azul for a more open, shallow pool that suits families and a casual dip.

They are paid — typically in the region of £5-15 each, with lockers, life jackets and snorkel hire usually extra — and several take cash only, so carry pesos. None is a manufactured attraction: the appeal is simply swimming in cool, glass-clear water in the jungle, which is exactly as good as it sounds when you get it to yourself.

Going early and what to pack

The single best thing you can do is go early. Be at the gate when it opens and the water is clearest and the place quiet; arrive mid-morning and the tour buses turn the bigger sites busy and loud. A hire car gives you that freedom, while a cheap colectivo down Highway 307 plus a short hop to the entrance works on a budget, and organised tours bundle transport, entry and gear if you would rather not plan.

Pack reef-safe, biodegradable sunscreen — most cenotes ban ordinary creams to keep the water clean, and many ask you to rinse off before entering — along with water shoes for the sharp rock, a towel, cash and a dry bag. Allow a half-day for one cenote with travel, or a full day to pair one with Tulum. Confirm current hours and prices on the official site, as both shift by season.