8m
    Cornwall & Devon, United Kingdom
    Christchurch Harbour

    OPEN CHANNEL

    Best months: Jul–Sep

    Protected Area

    Christchurch Harbour

    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) - OPEN CHANNEL 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 · max 8m
    StandoutExceptional marine biodiversity

    Okay, so Open Channel. Forget your big, intact wrecks here. This is a properly broken-up fishing vessel, scattered over a wide, shallow area. We love it because it’s surprisingly atmospheric, even at eight metres. Sunlight filters down, illuminating the twisted metal and the incredible growth that’s taken over every surface. You’ll find dabs of jewel anemones, colourful sponges, and nudibranchs grazing on the algae. It's less about penetrating a hull and more about exploring a debris field, discovering little pockets of life. Look for schools of juvenile pollack darting through the wreckage and the occasional grumpy lobster tucked into a crevice. It’s a brilliant site for newer divers getting comfortable with wreck diving in UK waters, or for photographers wanting to play with ambient light and macro subjects. Our favourite time to dive it is on a calm, sunny day with a slack tide – you get the best visibility and the light really brings out the colours.

    Typical OPEN CHANNEL Dive Profile

    5m10mSafety Stop0m8m max~60 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

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

    Today06:2317:2511h 2m daylightGolden hour 16:41

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    Conditions

    Ocean conditions, forecast and tides for OPEN CHANNEL

    OPEN CHANNEL Ocean Conditions

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

    ExcellentGreatGoodFairPoor★Best monthsThis month

    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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