Open data for cave diving

OpenCaves gathers what cave divers want to know about caves and cave systems around the world: where they are, how to get in, how they connect, what the surveys show. Open, and built by divers. It starts with the cenotes of the Yucatán.

Open the map - Browse the caves - Browse the systems

911 caves and 417 cave systems on OpenCaves.

Cave diving can kill

Diving beyond the daylight zone of a cave or cenote takes cave training and certification, the right equipment and experience. In a cenote, the cavern - the part where daylight still shows the way out - can be dived with cavern training and a guide; beyond it is the cave, for trained cave divers only.

Not for dive planning

The information on OpenCaves is shared by its community. It can be incomplete, inaccurate or out of date, and it is not suitable for planning or conducting a dive. See the terms of use.

What you'll find

Caves: where each cave is and how to reach it - entrances, access, fees and facilities, with photos, videos and descriptions.
Cave systems: how caves connect into systems, their length and depth, and the history of their exploration.
Survey maps: cave passages traced from published survey maps, drawn on the map with their lines and markers.
Offline: save caves on your phone before you head out, to have them where there's no signal.

Areas of the Yucatán Peninsula, Mexico

Built by divers

OpenCaves is open data: anyone can read it, and divers keep it up to date. Sign up to add caves, photos, videos and ratings. The app itself is open source.