These underwater caves are home to a whole host of aquatic animals, including green turtles, balloonfish, leaf fish, Moray eels, Manta rays, angelfish, butterflyfish and ferocious barracudas. Divers can also spot stingrays near the deeper ledges of the cave.

Sea caves may abound with life, both on their walls and floors. Besides the kind of critters seen in normal tidepools, such as anemones, starfish, and sponges, sea caves with dark zones may harbor organisms not commonly seen in shallow water.

Nurse sharks are most commonly seen in the cave and although they are harmless it is still exhilarating to be able to swim so close to them. Just 30 minutes off the coast of Cancun near Isla Mujeres lies a popular diving destination called Cave of the Sleeping Sharks, which has baffled marine biologists everywhere.

Nurse Shark