Grand Cayman, Cayman Islands
    North West Point - West Bay Cemetery (Grand Cayman)

    Big Dipper

    Best months: Dec–Mar

    Protected Area

    North West Point - West Bay Cemetery (Grand Cayman)

    Why dive here

    With 327+ marine species recorded in the area - including barracuda, bull sharks, oceanic whitetip sharks, orcas and sea turtles - Big Dipper offers some of Grand Cayman's richest reef diving. Water ranges 27-31°C, warmest August, September, October.

    Best timeDec–Mar
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Bull Sharks, Oceanic Whitetip Sharks, Orcas and Sea Turtles · 327+ species recorded
    Water27-31°C · warmest August, September, October
    CharacterReef dive
    StandoutExceptional marine biodiversity

    The Big Dipper, up on Grand Cayman's northwest tip, is one of those sites where the visibility just stretches out forever. It’s a deep wall dive, maxing out around 26 metres, and the drop-off is sudden, like someone sliced the ocean floor with a knife. We love floating along that edge, feeling the cool water from the abyss brush against our skin, scanning the blue. What makes it special for us is that combination of the wall and the sand channels intersecting the reef. You’ll spot the usual suspects, of course, angelfish and butterfyfish gliding past. But we often find those smaller, more cryptic critters here too – look for the roughhead blenny popping its head out of a hole, or an eyed flounder trying its best to blend into the sand. Keep an eye out for Miss Darlington, our friendly resident porcupinefish, she’s usually lurking around the coral heads. We’d suggest going early in the morning; the light hitting the wall as the sun rises is pretty spectacular. This site is perfect for divers who appreciate dramatic topography and are happy to slow down and hunt for the tiny wonders.

    Today06:1918:0711h 48m daylightGolden hour 17:38

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    Conditions

    Ocean conditions, forecast and tides for Big Dipper

    Big Dipper Ocean Conditions

    Monthly averages for Big Dipper, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (19.38, -81.32) (5km away)

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    October Averages

    Sea Temperature

    30°C

    87°F · Range: 29.1–31.8°C

    Current Speed

    4.47 cm/s

    Direction: NW (296.6°)

    Chlorophyll-a

    0.045 mg/m³

    Very clear (oligotrophic)

    Salinity

    36.14 PSU

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

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