60m
    Cornwall & Devon, United Kingdom
    West of Wight-Barfleur

    K M B (POSSIBLY)

    Best months: Jul–Sep

    Protected Area

    West of Wight-Barfleur

    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) - K M B (POSSIBLY) 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 60m
    StandoutExceptional marine biodiversity

    The K.M.B. is a proper deep wreck, and it’s one we really enjoy when the conditions are right. Sunk in 1987, this 15.2m fishing vessel sits upright and largely intact at 60m, making it a serious technical dive. Descending, you can often feel the thermocline bite as you pass 20m, then it’s just the slow, controlled drop into the green gloom. What we love about the K.M.B. is its immediate sense of purpose. You can still make out the wheelhouse structure, and the winches and nets are often draped over the deck, hinting at its working life. Conger eels are always a possibility here, tucked into any available crevice, and the metalwork is thick with jewel anemones and dead man’s fingers, glowing in your torch beam. Visibility can be decent for the UK, often 10m on a good day, but it’s a site for experienced trimix divers comfortable with deep decompression. Our tip? Go early in the season, late spring, before the summer plankton bloom kicks in. That’s when you get the clearest water.

    Typical K M B (POSSIBLY) Dive Profile

    15m30m45m60mSafety Stop0m60m max~15 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

    Maximum depth 60m exceeds recreational limits (40m). Technical diving certification and equipment required.

    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.

    Today06:2617:2911h 3m daylightGolden hour 16:45

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    Conditions

    Ocean conditions, forecast and tides for K M B (POSSIBLY)

    K M B (POSSIBLY) Ocean Conditions

    Monthly averages for K M B (POSSIBLY), 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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