20-25m
    Cozumel, Mexico
    Arrecifes de Cozumel

    No-name Reef

    Good diving all year

    Protected Area

    Arrecifes de Cozumel

    Why dive here

    With 177+ marine species recorded in the area - including barracuda, bull sharks, dolphins, eagle rays and nurse sharks - No-name Reef offers some of Cozumel's richest reef diving. Water ranges 27-30°C, warmest August, September, October.

    Best timeYear-round
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Bull Sharks, Dolphins, Eagle Rays and Nurse Sharks · 177+ species recorded
    Water27-30°C · warmest August, September, October
    CharacterReef dive · max 20-25m
    StandoutExceptional marine biodiversity

    No-name Reef is one of those spots we love saving for days when a southerly wind makes the usual suspects a bit much. It’s not flashy, no massive swim-throughs, but it's got a quiet charm. Descend to around 18 metres and you'll find a small, solitary wall dropping gently. We’ve often seen tarpon cruising the deeper edge, their scales glinting, and it’s a good spot for finding those smaller, shyer creatures. Keep an eye out for the yellowline arrow crabs picking their way across the corals, and if you’re patient, a redface eel might poke its head out from a crevice. We've spotted pygmy morays here, tucked into the lettuce coral, and those tiny glass gobies clinging to the finger coral like little jewels. Visibility here usually holds strong at 25 metres, giving you a clear view of the wall's texture and the occasional Caribbean vase sponges. It’s a site for the diver who appreciates the details, the one who doesn't need huge pelagics to feel content. It's a nice, relaxed dive, often with very few other boats around, making it feel like your own private reef.

    Typical No-name Reef Dive Profile

    10m20mSafety Stop0m20m max~30 min estimated bottom time

    Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.

    Safety Notes

    Depth of 20m - Advanced Open Water certification recommended.

    Strong currents typical this month (avg 79 cm/s). Good buoyancy control essential.

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today05:4217:2911h 47m daylightGolden hour 17:00

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    Conditions

    Ocean conditions, forecast and tides for No-name Reef

    No-name Reef Ocean Conditions

    Monthly averages for No-name Reef, sourced from NOAA NDBC + Copernicus Marine (EU) - nearest station: Yucatan Basin - 120 NM ESE of Cozumel, MX (227km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    30°C

    85°F · Range: 28.7–32.3°C

    Air Temperature

    29°C

    84°F

    Current Speed

    78.6 cm/s

    Direction: NE (36.7°)

    Chlorophyll-a

    0.046 mg/m³

    Very clear (oligotrophic)

    Salinity

    35.99 PSU

    Wave Height

    1.1m

    6.7s period

    Wind Speed

    5.5 m/s

    10.7 knots

    Atmospheric Pressure

    1010.7 hPa

    Visibility

    24.1 nmi

    Based on 5 years of monitoring data · Data sources: NOAA NDBC + Copernicus Marine (EU)

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