Cornwall & Devon, United Kingdom
    Calshot Marshes

    SARGIA

    Best months: Jul–Sep

    Protected Area

    Calshot Marshes

    Why dive here

    With 176+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - SARGIA offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.

    Best timeJul–Sep
    WetsuitA 5mm wetsuit
    Marine lifeBlue Sharks, Dolphins, Dwarf Minke Whales, Humpback Whales and Ocean Sunfish (Mola Mola) · 176+ species recorded
    Water10-18°C · warmest July, August, September
    CharacterWreck dive
    StandoutExceptional marine biodiversity

    The Sargia, a barge that sank off Calshot in 1982, offers a surprisingly solid dive in the often-turbid waters of the main channel. Despite the zero-meter depth listed in the data, it sits considerably deeper, usually around 10-15m, making it accessible for most divers. You’ll find the wreck largely intact, a nice contrast to some of the more broken-up sites in the area. We’ve seen conger eels poking out from plates and a good scattering of crabs and lobsters making themselves at home amongst the structure. Visibility can be a bit of a lottery here, but on a good day, it’s a rewarding exploration for those looking for a bit of history beneath the waves.

    Safety Notes

    Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.

    Today06:2217:2411h 2m daylightGolden hour 16:39

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    Conditions

    Ocean conditions, forecast and tides for SARGIA

    SARGIA Ocean Conditions

    Monthly averages for SARGIA, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (50.44, -2.73) (3km away)

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    October Averages

    Sea Temperature

    17°C

    62°F · Range: 15.1–17.5°C

    Air Temperature

    13°C

    56°F

    Wind Speed

    8.14 m/s

    15.8 knots

    Atmospheric Pressure

    1011 hPa

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

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