The Pit (El Pit)
A deep, narrow shaft in the jungle about 2.8 km past Dos Ojos, inside the Dos Ojos park. Divers descend through the middle past a shallow halocline towards a milky hydrogen sulfide cloud at roughly 27–30 m, where tree branches poke through like a ghostly forest. In good morning light, sunbeams cut down the shaft. On the way up, a sloping ceiling at about 10 m is covered with stalactites; beyond the cloud the system continues to 119 m, the deepest known passage in Quintana Roo.
depth: 0–40 m