25-40m
    Zanzibar & Pemba, Tanzania

    The Big Wall

    Best months: Jul–Oct

    Why dive here

    With 312+ marine species recorded in the area - including barracuda, blue-spotted stingrays, dolphins, eagle rays and hammerhead sharks - The Big Wall offers some of Zanzibar & Pemba's richest drift diving. Water ranges 26-30°C, warmest February, March, April.

    Best timeJul–Oct
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Blue-Spotted Stingrays, Dolphins, Eagle Rays and Hammerhead Sharks · 312+ species recorded
    Water26-30°C · warmest February, March, April
    CharacterDrift dive · max 25-40m
    StandoutExceptional marine biodiversity

    The Big Wall delivers exactly what the name promises: a serious vertical drop. We love the sheer scale of it, plunging from a comfortable 24 metres down to a hazy 60 metres or more. It’s less about a frantic search for tiny critters and more about soaking in the grandeur of the ocean. We always make a point of checking out the small caves and overhangs carved into the wall. That’s where you’ll often find lobsters tucked away and sometimes a stingray resting on the sandy ledges. Keep an eye out for Titan triggerfish; they’re often patrolling the wall, looking for an easy meal. If you hit it between June and September, there's a real chance of spotting hammerhead sharks cruising out in the blue. We'd suggest this site for confident divers who appreciate dramatic topography and don’t mind a bit of current, as it can get lively here.

    Typical The Big Wall Dive Profile

    10m20mSafety Stop0m25m 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 25m - Advanced Open Water certification recommended.

    Drift dive - carry a surface marker buoy (SMB) and stay with your group. Brief the current direction before entry.

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

    Today06:0418:1612h 12m daylightGolden hour 17:48

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    Conditions

    Ocean conditions, forecast and tides for The Big Wall

    The Big Wall Ocean Conditions

    Monthly averages for The Big Wall, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-5.98, 39.4) (10km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    27°C

    81°F · Range: 25.9–28.4°C

    Air Temperature

    26°C

    79°F

    Wind Speed

    4.72 m/s

    9.2 knots

    Atmospheric Pressure

    1013.8 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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