
Cozumel
Mexico · Caribbean
A 48km-long limestone island off the Yucatán, Cozumel is the easiest first class drift diving in the western hemisphere: clear blue water pushed north along a chain of cuts, swim throughs, and coral spurs that bottom out at 20–40m. Big eagle ray and turtle traffic, splendid toadfish on the sand, and a reef that has bounced back well from past bleaching.
How this reef is doing
ⓘ How we measure thisReef state
Less hard coral than the photos. Fish life, sponges, and the wall topography are still excellent. Best at depth (>20 m) and on the cooler shoulder months (Dec–Mar).
Coral cover
Fish life
Heat
Warmer than usual right now, but not hot enough to bleach.
Fishing
Quiet water, and the protection is actively patrolled.
Sources · MERMAID and partner coral surveys · NOAA Coral Reef Watch · Global Fishing Watch and reef gravity
What you will see
21 species across the dive sites here

American Crocodile
Seen 4 days ago
at Devil's Throat
Vulnerable

Brown Anole
Seen 4 days ago
at Devil's Throat
Least concern

Great-Tailed Grackle
Seen 5 days ago
at Santa Rosa Wall
Least concern

Nurse shark
Seen 7 days ago
at Columbia Reef
Vulnerable

Southern stingray
Seen 7 days ago
at C-53 Felipe Xicotencatl
Near threatened

Splendid toadfish
Seen 7 days ago
at Palancar Reef
Endangered

Atlantic Sergeant Major
Seen 9 days ago
at Santa Rosa Wall
Least concern

Bananaquit
Seen 9 days ago
at Santa Rosa Wall
Least concern

French Angelfish
Seen 10 days ago
at Santa Rosa Wall
Least concern

Spotted eagle ray
Seen 12 days ago
at Palancar Reef
Endangered

Green turtle
Seen 13 days ago
at Columbia Reef
Least concern

Caribbean reef shark
Seen 16 days ago
at Palancar Reef
Endangered

Caribbean reef octopus
Seen 17 days ago
at Paradise Reef
Least concern

Spotted moray eel
Seen 17 days ago
at Santa Rosa Wall
Least concern

Great barracuda
Seen 24 days ago
at C-53 Felipe Xicotencatl
Least concern

Queen angelfish
Seen 24 days ago
at Paradise Reef
Least concern

Hawksbill turtle
Seen 1 month ago
at Palancar Reef
Critically endangered

Green moray
Seen 2 months ago
at Paradise Reef
Least concern

Green moray eel
Seen 2 months ago
at Devil's Throat
Least concern

Nassau grouper
Seen 4 months ago
at Palancar Reef
Critically endangered

Black grouper
Seen 10 months ago
at Santa Rosa Wall
Near threatened
Dive sites

Palancar Reef
hawksbill turtle · splendid toadfish · spotted eagle ray · nassau grouper

Santa Rosa Wall
hawksbill turtle · black grouper · caribbean reef shark · spotted moray eel

Devil's Throat
caribbean reef shark · green moray eel · nassau grouper · bananaquit

Columbia Reef
hawksbill turtle · green turtle · splendid toadfish · spotted eagle ray

C-53 Felipe Xicotencatl
splendid toadfish · green moray eel · great barracuda · nurse shark

Paradise Reef
splendid toadfish · spotted eagle ray · queen angelfish · caribbean reef octopus
What divers say
I learned to dive in Cozumel and now I judge every drift dive against it. Most lose.
Good to know
Marine park fee
~$5/day, usually collected by your op. Keep your wristband.
Hurricane season
August–October peak risk; trip insurance with weather coverage is sensible.