DivePlnr
    Calvin s Crack dive site
    cave
    Roatán, Honduras
    Islas de la Bahía

    Calvin s Crack

    Best months: Jan–May

    Protected Area

    Islas de la Bahía

    Why dive here

    With 168+ marine species recorded in the area - including barracuda, orcas, sea turtles, whale sharks and pufferfish - Calvin s Crack offers some of Roatán's richest cave diving. Water ranges 27-30°C, warmest August, September, October.

    Best timeJan–May
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Orcas, Sea Turtles, Whale Sharks and Pufferfish · 168+ species recorded
    Water27-30°C · warmest August, September, October
    CharacterCave dive
    StandoutExceptional marine biodiversity

    Calvin’s Crack on Roatán's south side offers a unique swim-through experience. Divers drop into a crack at around 15 metres, following it down through interesting rock formations to an exit around 25 metres. It's a relatively easy penetration, good for those looking for a different kind of dive without serious overhead environment training. Keep an eye out for schooling fish near the opening.

    Safety Notes

    Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.

    Today05:3817:2911h 51m daylightGolden hour 17:00

    Nearest Dive Centres to Calvin s Crack

    Dive shops near Calvin s Crack

    Tortuga Dive Center

    718m away
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    East End Dive Club

    8km away
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    Roatan Seaside Divers

    8km away
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    Scuba Shop

    10km away
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    Roatan Aggressor

    10km away
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    Barefoot Divers

    15km away
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    View all dive centres in Roatán

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    Conditions

    Ocean conditions, forecast and tides for Calvin s Crack

    Calvin s Crack Ocean Conditions

    Monthly averages for Calvin s Crack, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (16.27, -86.6) (5km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    30°C

    86°F · Range: 29–31.6°C

    Current Speed

    1.41 cm/s

    Direction: NW (315°)

    Chlorophyll-a

    0.052 mg/m³

    Very clear (oligotrophic)

    Salinity

    35.96 PSU

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)

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