3m
    Cornwall & Devon, United Kingdom
    Middle Hope

    LONGLEY LASS

    Best months: Jul–Sep

    Protected Area

    Middle Hope

    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) - LONGLEY LASS 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 3m
    StandoutExceptional marine biodiversity

    The Longley Lass might be shallow, just 3 metres deep, but don't let that fool you into thinking it's boring. This isn't some generic reef dive. It’s a proper wreck, perfect for a long, relaxed dive, or even a snorkel if you’re short on air. We love how accessible it is, sitting upright on the seabed, its wooden ribs and metal plates providing plenty of nooks and crannies to poke around in. You'll find the wreck well-broken up, but with enough structure remaining to give you a real sense of its past life. Our favourite bit is exploring the bow section, often home to a surprising number of wrasse and blennies darting between the decaying timbers. It’s a fantastic spot for macro photography, too; look closely and you’ll often spot nudibranchs grazing on the algae, their vibrant colours a stark contrast to the muted tones of the wreck. This site is ideal for those days when you just want to potter around, taking your time without worrying about deco limits. It’s easy, rewarding, and a great example of how fascinating shallow wrecks can be.

    Typical LONGLEY LASS Dive Profile

    Safety Stop0m3m max~60 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

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

    Today06:2917:3011h 0m daylightGolden hour 16:44

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    Conditions

    Ocean conditions, forecast and tides for LONGLEY LASS

    LONGLEY LASS Ocean Conditions

    Monthly averages for LONGLEY LASS, 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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