Underwater caves can be found around the world, but appear and develop differently according to their environment. Caves in warmer waters can be home to coral reefs, while ice caves have less abundant life.
Photographers and divers have made it possible for us to get a glimpse at these mysterious underwater worlds. Images taken across the world, from Mexico's cenotes to Russia's underwater mineral caves, reveal beauty at great depths.
Take a look at photos of underwater caves around the world.
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