Dos Ojos Cenote System

Part of the Sistema Ox Bel Ha — the world's longest underwater cave system at over 268 kilometres of mapped passages — Dos Ojos (Two Eyes) is accessible to both snorkelers in its open lagoons and certified cave divers in its inner passages. The Barbie Cave chamber within Dos Ojos, where crystal-clear 25°C water meets stalactites at 12 metres depth, is the most otherworldly naturally illuminated space in Mexican caves.