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Cozumel · National Marine Park
Cozumel marine life
From a fish found nowhere else on the planet to turtles, eagle rays and cruising nurse sharks — here's what shares the reef with you on a Cozumel drift.
Found nowhere else on earth
The Cozumel splendid toadfish (pez sapo)
Cozumel's signature creature is endemic — it lives on this island's reefs and nowhere else in the world. The splendid toadfish hides under coral ledges and in crevices, recognisable by its striped face, barbels around the mouth and brilliant yellow fin margins.
It's shy and stays put, so spotting one is part skill, part local knowledge — our guides know the ledges they favour. Listen, too: males "sing" a low foghorn-like call you can sometimes hear underwater. For many divers, ticking off this one fish is reason enough to dive Cozumel.
Reliable sightings
Green & hawksbill turtles
Both green and hawksbill turtles are common on Cozumel's reefs, grazing on sponges and sea grass or resting under ledges. They're relaxed around slow, respectful divers, which makes for some of the easiest turtle encounters in the Caribbean.
Out in the blue
Spotted eagle rays
Eagle rays glide along the edge of the wall and over sandy bottoms, especially at deeper sites like Columbia Deep. In the cooler months they sometimes pass in squadrons — a highlight of any drift. Hang in the blue and keep one eye off the reef.
More of what you'll meet
Nurse sharks
Often resting under ledges by day, especially at Paso del Cedral. Harmless and unbothered by slow divers.
Queen angelfish
One of the reef's most striking residents — electric blue and yellow, gliding between coral heads.
Groupers
Black and Nassau groupers hold station in the shadows of the big coral structures at Palancar and Columbia.
Splendid toadfish
The endemic star again — worth a second mention. Ask your guide to point one out under the ledges.
The occasional reef shark
Not a daily sight, but reef sharks turn up on the deeper southern walls — Columbia and Punta Sur are best.
Schooling fish
Grunts, snappers and creole wrasse mass over the shallow reefs — Paso del Cedral is wall-to-wall fish.
Come meet the locals
Small groups and slow, deliberate dives mean more time to spot the shy stuff — the toadfish included. Tell us your dates and we'll plan the morning.