Sistema Sac Actun

Sistema Sac Actun (, ) is an underwater cave system situated along the Caribbean coast of the Yucatán Peninsula with passages to the north and west of the city of Tulum. Discovery of a connection to Sistema Dos Ojos in 2018 made it the longest known underwater cave system. , it is the second longest underwater cave system in the world, only surpassed by Sistema Ox Bel Ha.

Details

Mark
Gfi-set01-cave_blue.svg
Depth
119.2 m
Length
Underwater: 378.56 km
Geology
Limestone
Location
Tulum Municipality, Quintana Roo, Mexico
Discovery
November 26, 1987
Difficulty
Advanced cave diving
Photo Caption
Sac Actun
Entrance Count
228 Cenotes
Label Position
left