Scuba Season
Underwater reef at Riviera Maya Cenotes
Declining

Riviera Maya Cenotes

Mexico · Yucatán Peninsula

The Yucatán cenotes are freshwater sinkholes connecting a vast cave system — filtered, gin clear water, dramatic light beams, halocline (fresh meeting salt) layers, and otherworldly geology. Cavern diving is open water style; full cave penetration is technical.

How this reef is doing

How we measure this

Reef state

Declining

Cenote freshwater cave system — not a coral reef. The metric here is water clarity and cave geology, both unchanged.

Coral cover

0%
LowHealthy
Critical

Fish life

Not surveyed

Heat

SafeBleaching

Warmer than usual right now, but not hot enough to bleach.

Warming

Fishing

QuietBusy

Some fishing is allowed here, in marked zones.

Limited

Sources · Reef survey · NOAA Coral Reef Watch · Global Fishing Watch and reef gravity

Coral cover over time

Live coral cover, by survey year

Across surveys in 2014 and 2024, live coral cover here has held steady at about 0%. Every point is a real survey reading, never a projection.

Live coral cover, percent by year

40%0%region avg 16%20142024
Two surveys
Caribbean average (GCRMN)
Reef survey

What you will see

23 species across the dive sites here

Dive sites

What divers say

Sunbeams through the entrance of Dos Ojos like cathedral glass underwater. I'll keep coming back forever.
Photographer

Good to know

Mask seal

Bring a backup. Fresh water + no current means tiny leaks are noticed.

Stay on the line

Even in cavern zones, treat the guideline as sacred. Pull yourself along it.

Gear & getting wet

  • Basic kit

    • Mask and fins
    • BCD and regulator
    • 3mm full wetsuit · warm water
    • Dive computer
  • For specific sites

    • Primary dive light · Dos Ojos
    • Dive computer · Dos Ojos