33m
    Cornwall & Devon, United Kingdom
    Studland to Portland

    HMS ARFON

    Best months: Jul–Sep

    Protected Area

    Studland to Portland

    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 ARFON 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 33m
    StandoutExceptional marine biodiversity

    The Arfon is one of those wrecks that just delivers. Not just because of her story – a minesweeper sunk by a German mine in 1917, taking ten men with her – but because she’s still so intact. She rests upright on a sandy seabed at 33 metres, her bow pointing northeast. We love how her shape is still so defined, from the stern, where you can still make out the prop shaft and rudder, all the way to the bow section, which rises a good four or five metres off the seabed. Even on a day with average visibility, the Arfon feels substantial. Swimming along the deck, you’ll find plenty of nooks and crannies to peer into, home to conger eels and squat lobsters. Our favourite part is the engine room, which is fairly open and usually swarming with tommy-ruffs and pollack. We’d suggest saving this for a day with good slack water, as currents can pick up around here, but it’s absolutely worth the effort. For divers who appreciate a wreck with a real sense of history and structure, the Arfon is a standout dive.

    Typical HMS ARFON Dive Profile

    15m30mSafety Stop0m33m max~20 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

    Deep dive (33m) - monitor air consumption closely. Advanced certification recommended.

    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.

    Today06:2517:2711h 3m daylightGolden hour 16:43

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    Conditions

    Ocean conditions, forecast and tides for HMS ARFON

    HMS ARFON Ocean Conditions

    Monthly averages for HMS ARFON, 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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