Chankanaab Reef

20.3774°N 87.0371°W · reef

Depth
12 m
Level
Beginner
Entry
shore
Type
reef

Chankanaab Reef

A beginner-friendly shore dive within Chankanaab National Park, combining easy coral reef access with a certified-diver cave entrance — the only shore-accessible cave dive in Cozumel.

Overview

Chankanaab Reef fronts the protected national park of the same name at kilometre 9 on Cozumel’s southern coast, offering easy shore entry directly into crystal-clear water teeming with parrotfish, angelfish, spotted drum, and long-snout seahorses in 5–12 metres. A mild northward current keeps the water refreshed and visibility consistently excellent, and for certified divers the submerged cave La Quebrada — the only shore-accessible cave dive in Cozumel — is a highlight accessed through a halocline where cool freshwater meets the sea.

Site Information

  • Location: Cozumel, Caribbean
  • Entry Type: Shore entry
  • Site Type: Reef
  • Difficulty Level: Beginner
  • Maximum Depth: 12 meters

Marine Life

Long-snout seahorses, spotted drum, and parrotfish are common throughout the shallow reef, and green and hawksbill turtles rest on the coral heads with regularity. The splendid toadfish — endemic to Cozumel — can sometimes be found in reef crevices near the national park, and the submerged cave La Quebrada shelters glassy sweepers, lobsters, and moray eels in its halocline-rich interior.


Sources: Shore Excursioneer — Chankanaab Marine Park Dive, Blue Note Scuba — Cozumel Dive Sites, Lancaster Scuba — Chankanaab Reef, Sand Dollar Sports — Cozumel Dive Sites. Last updated 2026-05-23.

Depth profile
0m · surface−12m max
Ocean conditions
27.3–30.7°CWater temp (yearly range)
0.8–1.6 mWave height
SepWarmest
AugCalmest seas
31°27° JFMAMJJASOND

Sea-surface temperature and wave height from Open-Meteo Marine (ERA5 reanalysis, monthly averages).

Recorded marine life nearby

476 verified species observations (303 species) logged within ~11 km of this site between 1885 and 2025, from the Ocean Biodiversity Information System.

Chordata · 71Mollusca · 146Cnidaria · 30Echinodermata · 32Arthropoda · 13
  • Pterois · lionfish
  • Gnatholepis thompsoni
  • Canthigaster rostrata
  • Coryphopterus hyalinus
  • Liopropoma mowbrayi
  • Lipogramma trilineata
  • Halichoeres garnoti
  • Leucoraja yucatanensis
  • Starksia
  • Pseudoraja fischeri
  • Apogon maculatus
  • Priolepis hipoliti

Scientific survey records skew toward sampled taxa (molluscs, corals) and do not reflect what you are guaranteed to see on a dive.

Source: OBIS (obis.org), aggregated Darwin Core occurrence records.

Dived here recently?

Conditions change with the tide and the season. If you have dived this site, share what it was actually like — date, visibility, current, and what you saw. Real, recent reports from divers are exactly what this guide is built to collect.

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reef
Reef with anthias · illustrative · photo credit

Nearby dive sites in Cozumel

Source: OpenStreetMap via dive-vibe-community (ODbL) · Last updated 2026-07-17