Mafia Island, Tanzania
    Mangrove

    Kasa

    Best months: Jun–Oct

    Protected Area

    Mangrove

    Why dive here

    With 165+ marine species recorded in the area - including humpback whales, sea turtles, sperm whales and whale sharks - Kasa offers some of Mafia Island's richest cave diving. Water ranges 26-29°C, warmest February, March, April.

    Best timeJun–Oct
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeHumpback Whales, Sea Turtles, Sperm Whales and Whale Sharks · 165+ species recorded
    Water26-29°C · warmest February, March, April
    CharacterCave dive
    StandoutExceptional marine biodiversity

    Kasa is a good site for an easy dive, often shallow and quite colourful. We've regularly seen mature green turtles here, sometimes grazing in the seagrass near the reef edge, which is always a treat. Keep an eye out for black-tipped silver-biddies and the occasional dusky shark cruising by. While the site itself is pleasant, expect some decent currents, especially if you're hoping for a pelagic sighting. It's a nice, relaxed spot, especially for a second dive.

    Safety Notes

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

    Today06:0118:1612h 15m daylightGolden hour 17:48

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    Conditions

    Ocean conditions, forecast and tides for Kasa

    Kasa Ocean Conditions

    Monthly averages for Kasa, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-8.12, 39.65) (37km away)

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    October Averages

    Sea Temperature

    27°C

    81°F · Range: 26.2–28.4°C

    Air Temperature

    26°C

    79°F

    Wind Speed

    7.33 m/s

    14.2 knots

    Atmospheric Pressure

    1014 hPa

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

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