Cenote Cristal (Naharon)
Cenote Cristal, signposted under that name but known to cave divers as Naharon, is a round collapse doline about 3 km south of Tulum next to Highway 307. It is a main entrance to Sistema Naranjal, whose passages are dark from tannin staining. The cave is famous for the 'Eve of Naharon', the skeleton of a young woman found underwater and carbon-dated to around 13,600 years, though the date is uncertain because the bones lay in salt water. ProTec recommends it as the first cave dive in Tulum for certified cave divers (average depth ~16 m).
depth: None–16 m