2m
    Cornwall & Devon, United Kingdom
    Selsey Bill and the Hounds

    ADA MARY

    Best months: Jul–Sep

    Protected Area

    Selsey Bill and the Hounds

    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) - ADA MARY 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 2m
    StandoutExceptional marine biodiversity

    The Ada Mary isn't about depth or big pelagics, it’s about accessibility and history. Resting in just two metres of water, this barge, scuttled back in '58, is perfect for a long, relaxed dive or even a snorkel on a calm day. We love how the shallow depth lets sunlight flood the wreck, illuminating the structure and the surprising amount of life that's made it home. You'll spend your time exploring the skeletal remains of the hull, perhaps finning through a hatch or two if the tide is right. Look closely, and you'll spot crabs scuttling amongst the plates, blennies peeking from crevices, and anemones clinging to every available surface. It’s a fantastic spot for macro photography, especially when the sun is high and those shallow shadows really pop. Our tip: go at slack tide for the clearest views and easiest navigation around the exposed sections. It’s a great confidence builder for newer divers looking for their first wreck experience, or simply a chilled-out dive when you don't fancy a long boat trip.

    Typical ADA MARY Dive Profile

    Safety Stop0m2m 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.

    Today06:2017:2211h 2m daylightGolden hour 16:37

    ADA MARY Wreck History

    Year Sunk

    1958

    Vessel Type

    barge

    Cause

    unknown

    Little is recorded about the final moments of the barge Ada Mary, which sank on October 15, 1958. Barges are the workhorses of the waterways, and their loss, while significant to their owners, often goes unheralded. What is known is that she now rests in the shallow waters off the coast of Cornwall or Devon, where she has become a unique feature of the seabed. The wreck is noted for having a visible mast or masts, an interesting feature for a vessel of this type.

    The Ada Mary is an exceptionally accessible wreck, sitting in just 2 meters of water. This makes it an ideal site for novice divers, training dives, or even snorkelers on a calm day. It offers a unique opportunity to explore a wreck in bright, sunlit conditions, allowing for long, relaxed bottom times and close observation of the marine life that has made the simple barge its home.

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    Conditions

    Ocean conditions, forecast and tides for ADA MARY

    ADA MARY Ocean Conditions

    Monthly averages for ADA MARY, 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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