51m
    Cornwall & Devon, United Kingdom
    Trevose Head

    NORTHERN STAR

    Best months: Jul–Sep

    Protected Area

    Trevose Head

    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) - NORTHERN STAR 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 51m
    StandoutExceptional marine biodiversity

    The *Northern Star* offers a proper technical dive, sitting upright in 51 metres, and for those trained for the depth, it’s a rewarding trip. We love how intact the wreck is, a compact fishing vessel that went down after a fire in 1982. There's a real sense of history here, a sudden window into a working boat, now a home for the deep. We’d suggest looking for the bow section first; the lines are still sharp, and you can imagine her cutting through the waves. The prop is still in place, often draped in wrasse, and the deck area, though small, usually has some interesting crabs scuttling about. Visibility at this depth can be variable, but when it’s good, the natural light filtering down creates an almost ethereal glow around the structure. It’s definitely a site for experienced cold water divers, accustomed to longer deco stops, but it’s one of our favourites for a real sense of exploration.

    Typical NORTHERN STAR Dive Profile

    15m30m45mSafety Stop0m51m max~15 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

    Maximum depth 51m exceeds recreational limits (40m). Technical diving certification and equipment required.

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

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

    Today06:3717:3911h 2m daylightGolden hour 16:55

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    Conditions

    Ocean conditions, forecast and tides for NORTHERN STAR

    NORTHERN STAR Ocean Conditions

    Monthly averages for NORTHERN STAR, 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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