Spotted Moray Villa Blanca Reef

Villa Blanca Wall

Dive site off Cozumel, Quintana Roo, Mexico. Here's what has been recorded at this site month by month, how the region’s reefs have weathered ocean heat, and how to prepare.

Cozumelwall
At this site Spotted Moray Villa Blanca Reef · Possiblynessie · CC BY-SA 4.0 · Wikimedia Commons
Atlantic Sergeant Major (Abudefduf saxatilis)
Chapter I · Arrival

Villa Blanca Wall: dive site off Cozumel, Quintana Roo, Mexico.

20.496° N86.979° W · OpenStreetMap · node/663869366
178open records · GBIF
30species recorded
At this sitegeotagged 476 m from the site coordinates Atlantic Sergeant Major (Abudefduf saxatilis) · Alexis Williams · CC BY 4.0 · iNaturalist
II

Entry

Atlantic Sergeant Major (Abudefduf saxatilis)

Shore and boat entries vary by site. We list only rules we can cite from official sources; entry points, depths and currents will be added once we can verify them.

To verifyDepth range, entry points and current notes. We publish them only with a citation. The coordinates mark the site in general, not a mooring or entry point.
Local rules (cited)
  • The Arrecifes de Cozumel National Park charges an entry fee of $225 MXN per person per day (as listed by CONANP), with listed exemptions and discounts. CONANP · Arrecifes de Cozumel
  • CONANP visitor rules include keeping 1.5 m from the reefs, not feeding wildlife, and hiring only CONANP-authorized boats and guides. CONANP · Protected Areas
  • Ask your operator for the park wristband (brazalete). CONANP says it is your proof of having paid the conservation fee. CONANP · Parque Nacional Arrecifes de Cozumel

At this sitegeotagged 476 m from the site coordinates Atlantic Sergeant Major (Abudefduf saxatilis) · Alexis Williams · CC BY 4.0 · iNaturalist

▶
Captain's footage: Villa Blanca Wall
[video slot · coming soon]

The surface noise falls away.

Reds go first. The world turns blue-green.

Then Villa Blanca Wall rises to meet you.

Spotted Moray Villa Blanca Reef
IV

What lives here, by month

Pick a month. These are the species most often recorded within about a kilometre in that month, from open survey records.

Oct
October · 2 qualifying records
Life calendar · records per month for this site's most-recorded species (blank means not in that month's top list)
SpeciesJanFebMarAprMayJunJulAugSepOctNovDec
Southern Stingray
Nurse shark
Caribbean spiny lobster
Gray angelfish
Blue Tang
Great barracuda
Sergeant Major
Deltoid rocksnail
Giant Caribbean anenone
Queen Conch
Caribbean vase
Chestnut latirus

Most-recorded species, all months

  1. Nurse shark (5)
  2. Southern Stingray (5)
  3. Caribbean spiny lobster (3)
  4. Gray angelfish (3)
  5. Blue Tang (3)
  6. Great barracuda (3)
  7. Sergeant Major (2)
  8. Deltoid rocksnail (2)
  9. Queen Conch (1)
  10. Giant Caribbean anenone (1)
  11. Caribbean vase (1)
  12. Chestnut latirus (1)
  13. Margate (1)
  14. Cottonwick (1)
  15. Bluestriped Grunt (1)
  16. Porkfish (1)
  17. Sand Tilefish (1)
  18. Striped Parrotfish (1)
  19. French angelfish (1)
  20. Yellowtail Damselfish (1)

GBIF.org (2026-10-14), occurrence records within ~1 km, licensed CC0 or CC BY 4.0 only. Birds and land animals are excluded. Counts reflect survey effort, not abundance. 178 qualifying records. See them on GBIF. Common names: Wikidata (CC0) / GBIF. Species photos: Wikimedia Commons, credited with each species.

V

Forty-one summers of heat

Each stripe is one year since 1985, colored by its peak heat stress across NOAA's “Quintana Roo, Mexico” region. These are NOAA Coral Reef Watch satellite figures for the whole region, not for this one site.

19852026
Reef health report · Quintana Roo, Mexico

Heat stress, measured from orbit.

Degree Heating Weeks · 2026-10-1316.8°C-weeks · NOAA status: Alert Level 2

NOAA CRW virtual station “Quintana Roo, Mexico”. NOAA's alert thresholds are 4 °C-weeks (Alert Level 1) and 8 °C-weeks (Alert Level 2). Station page · Method. Credit: NOAA Coral Reef Watch.

Peak per year · dashed lines at 4, 8 and 16 °C-weeks
The past twelve months
VI

Conditions

Average sea temperature through the year. Check the live readings before you go.

Average sea surface temperature by month: NOAA CRW “Quintana Roo, Mexico” station climatology (monthly means).

Buoy readings are measurements; forecasts are models. Use them for planning only, and assess conditions on site. Depth and visibility data aren't listed until we can cite a source.

VII

Plan & prepare

  1. Read the official marine forecast the night before.Offshore, wind and sea state decide the day.
  2. Check the cited local rules above and pay any park fee before you dive.[Placeholder: verified operator list to come]
  3. Study this month's species above.You'll recognise more when you know the names.
  4. Hands off, fins up, buoyancy dialled. Log what you see.Your sightings can become tomorrow's open data.

Credits

Coordinates
OpenStreetMap node/663869366 · source · ODbL. OpenStreetMap (ODbL) dive-site nodes. Most of these Cozumel nodes carry an OSM tag saying the position is unverified, so treat them as approximate.
Species records
GBIF.org, CC0 & CC BY 4.0 records. By license: CC_BY_4_0: 168, CC0_1_0: 10
Dataset
EOD – eBird Observation Dataset · doi:10.15468/aomfnb (129 records) · GBIF
Dataset
iNaturalist Research-grade Observations · doi:10.15468/ab3s5x (40 records) · GBIF
Dataset
CAS Invertebrate Zoology (IZ) · doi:10.15468/tiac99 (8 records) · GBIF
Dataset
Birda - Global Observation Dataset · doi:10.15468/6kud7x (1 records) · GBIF
Query
https://api.gbif.org/v1/occurrence/search?decimalLatitude=20.485529999999997,20.50553&decimalLongitude=-86.98945,-86.96945&license=CC0_1_0&license=CC_BY_4_0&taxonKey=44&taxonKey=206&taxonKey=229&taxonKey=136&taxonKey=225&occurrenceStatus=PRESENT&limit=0
Heat stress & SST
NOAA Coral Reef Watch, 5 km Regional Virtual Station “Quintana Roo, Mexico”
Hero photo
At this site Spotted Moray Villa Blanca Reef · Possiblynessie · CC BY-SA 4.0 · Wikimedia Commons
Arrival photo
At this sitegeotagged 476 m from the site coordinates Atlantic Sergeant Major (Abudefduf saxatilis) · Alexis Williams · CC BY 4.0 · iNaturalist
Gallery
5 photos, credited under each image
Species photos
Wikimedia Commons, credited with each species. Full list: Data & sources