59m
    Cornwall & Devon, United Kingdom
    West of Wight-Barfleur

    HMS GOSSAMER

    Best months: Jul–Sep

    Protected Area

    West of Wight-Barfleur

    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) - HMS GOSSAMER 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 59m
    StandoutExceptional marine biodiversity

    The HMS Gossamer, sitting straight up at 59 metres, is one of our top picks for deep wreck diving off the UK coast. She’s an old minelayer, built in ’39, then scuttled as a target in 1970. What you get now is a beautifully intact hull, about 34 metres long, with a really satisfying amount to explore. You can still make out the forward gun mount, and the twin engines are a particular highlight for us – they’re quite impressive, sitting upright and open. We’ve always found a surprising amount of life down there, considering the depth. Conger eels often peek out from under plates, and the wreck itself is fuzzy with colourful jewel anemones and dead man’s fingers. The deep, dark water often gives it a quite eerie, almost reverent feel, especially when the light barely filters down. It’s definitely one for experienced technical divers, given the depth, but the reward is a genuinely absorbing dive on a very characterful wreck. Try to hit it on a slack tide, otherwise, the current can make the descent and ascent a bit of a slog.

    Typical HMS GOSSAMER Dive Profile

    15m30m45m60mSafety Stop0m59m 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 59m 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.

    Today06:2517:2811h 3m daylightGolden hour 16:44

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    Conditions

    Ocean conditions, forecast and tides for HMS GOSSAMER

    HMS GOSSAMER Ocean Conditions

    Monthly averages for HMS GOSSAMER, 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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