20m
    Cornwall & Devon, United Kingdom
    Pentire Peninsula

    SPHENE (PROBABLY)

    Best months: Jul–Sep

    Protected Area

    Pentire Peninsula

    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) - SPHENE (PROBABLY) 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 20m
    StandoutExceptional marine biodiversity

    The Sphene, or what we’re pretty sure is the Sphene, lies at a comfortable 20 metres, making it a good target for anyone comfortable with basic wreck diving. This old steamship, sunk in 1946, is well broken up but still recognisable as a vessel. You'll find two large boilers standing proud amidst the scattered plating, usually swarming with tommy ruffs and a few inquisitive conger eels peeking from the darker recesses. The triple-expansion engine is still there, a fascinating jumble of metal now completely encrusted with jewel anemones. It’s a solid dive, offering enough structure to explore without being overly complex, and the marine life, particularly the smaller schooling fish, makes a decent showing.

    Typical SPHENE (PROBABLY) Dive Profile

    10m20mSafety Stop0m20m max~30 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

    Depth of 20m - Advanced Open Water 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.

    Today06:3617:3811h 2m daylightGolden hour 16:54

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    Conditions

    Ocean conditions, forecast and tides for SPHENE (PROBABLY)

    SPHENE (PROBABLY) Ocean Conditions

    Monthly averages for SPHENE (PROBABLY), 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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