8m
    Cornwall & Devon, United Kingdom
    Western King

    CATTEWATER

    Best months: Jul–Sep

    Protected Area

    Western King

    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) - CATTEWATER 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 8m
    StandoutExceptional marine biodiversity

    Cattewater isn’t about huge pelagics or technicolour corals. This is a journey back in time, submerged history right off Plymouth. We love it because it’s a tangible link to the past, an early sixteenth-century merchantman, lost around 1530, lying peacefully in just 8 metres of water. Think about that for a second. We’re talking Tudor era, and you can fin directly over it. The wreck itself is about 10 metres of coherent structure, mostly timbers, now encrusted and blended into the seabed. You’ll see the outlines of where the ship once was, and if your eyes are sharp, you might spot sections of the original cargo – we’ve seen divers point out what looked like bits of leather. What makes it genuinely special are the artefacts: those composite iron guns on their carriages, now lumps of history. It’s an intimate dive, more like an archaeological investigation than a coral drift. Visibility here can be a bit variable, as it’s in the Cattewater estuary, so pick your day. Slack tide is key, and we always suggest a run-out tide for clearer water. The site is shallow, making it perfect for newer divers interested in history, or anyone who enjoys a slow, contemplative explore rather than a fast-paced current ride. Look closely amongst the timbers and you'll find plenty of local life: crabs scuttling, blennies peeking from crevices, and small shoals of fish drifting over the ancient wood. It’s a very different kind of beauty, one that whispers stories.

    Typical CATTEWATER Dive Profile

    5m10mSafety Stop0m8m 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.

    Today06:3317:3511h 3m daylightGolden hour 16:51

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    Conditions

    Ocean conditions, forecast and tides for CATTEWATER

    CATTEWATER Ocean Conditions

    Monthly averages for CATTEWATER, 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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