37m
    Cornwall & Devon, United Kingdom
    Tennyson

    AJAX

    Best months: Jul–Sep

    Protected Area

    Tennyson

    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) - AJAX 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 37m
    StandoutExceptional marine biodiversity

    The Ajax, sitting at 37 metres, is a solid dive for anyone keen on a piece of wartime history off the Cornish coast. We tend to drop onto the stern first, where you can still pick out the propeller shaft leading forward. She’s a decent size at 67 metres long, allowing for a good swim-through experience in the cargo holds if you’re comfortable with overhead environments and your dive skills are dialled in. Expect to find conger eels tucked into the darker recesses, and plenty of bib and pollack darting around the superstructure. It’s a classic UK wreck dive: atmospheric, good penetration if you’re up for it, and always a few surprises from the local marine life.

    Typical AJAX Dive Profile

    15m30mSafety Stop0m37m 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 (37m) - 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.

    Today06:2217:2511h 3m daylightGolden hour 16:40

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    Conditions

    Ocean conditions, forecast and tides for AJAX

    AJAX Ocean Conditions

    Monthly averages for AJAX, 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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