max depth 7m/20 feet. Dos Ojos or “two eyes” is one of the world’s most famous cenotes due to its underwater archeology, formations, history and accessibility. It has two awesome cavern dives.It is one of the best place for the introduction into the cavern diving. There are also areas for swimmers and snorkelers. The first dive is the Dos Ojos main line which extends for about 500mts/1650 feet, has lots of natural light, fossils, gigantic formations such as stalactites, stalagmites and huge columns. The Bat Cave line is our second dive, with huge rooms filled with large formations. The actual Bat Cave is a big air pocket with a connection to the surface where you can come up and appreciate the beautiful limestone formations on the roof and see fossilized brain corals, conchs, shells, and many other surprises. The Bat Cave is about 450mts/1500 feet long. IMAX filmed part of their film “Journey into Amazing Caves” here. entrance fee: 380 pesos