43m
    Cornwall & Devon, United Kingdom
    Dolphin Head Highly Protected Marine Area

    USS FIRESTONE (POSSIBLY)

    Best months: Jul–Sep

    Protected Area

    Dolphin Head Highly Protected Marine Area

    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) - USS FIRESTONE (POSSIBLY) 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 43m
    StandoutExceptional marine biodiversity

    The USS Firestone, or what we believe to be her, is one of those wrecks that just sinks its hooks in. Lying at 43 metres, she’s a deep dive and often a dark one, even on a sunny day. We love the way she sits upright, still feeling like a ship, not just a pile of scrap. Dropping down, the first thing you notice is the sheer scale. She’s big. Schools of pollack often swirl around the superstructure, a silver cloud against the green water. We’ve seen conger eels that look like tree trunks poking out of every nook and cranny, and the deck guns are still there, heavily encrusted with dead man's fingers and anemones. It’s a proper expedition dive, best for experienced divers comfortable with limited visibility and the chill of the Atlantic. Our favourite part is exploring the stern, where the prop shaft housing is often home to some serious lobster. It’s a moody, atmospheric dive, definitely not for the faint of heart, but incredibly rewarding if you’re up for the challenge.

    Typical USS FIRESTONE (POSSIBLY) Dive Profile

    15m30m45mSafety Stop0m43m 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 43m 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.

    Today06:1917:2311h 4m daylightGolden hour 16:39

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    Conditions

    Ocean conditions, forecast and tides for USS FIRESTONE (POSSIBLY)

    USS FIRESTONE (POSSIBLY) Ocean Conditions

    Monthly averages for USS FIRESTONE (POSSIBLY), 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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