27m
    Istria Peninsula, Croatia
    Vrsarski otoci

    HMML 558

    Best months: Jul–Aug

    Protected Area

    Vrsarski otoci

    Why dive here

    With 46+ marine species recorded in the area - including dolphins, sea turtles and cuttlefish - HMML 558 offers some of Istria Peninsula's richest wreck diving. Water ranges 12-26°C, warmest July, August, September.

    Best timeJul–Aug
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeDolphins, Sea Turtles and Cuttlefish · 46+ species recorded
    Water12-26°C · warmest July, August, September
    CharacterWreck dive · max 27m

    The HMML 558, sitting upright at 27 metres, is a proper dive, a bit of history resting on the seabed. We love how intact it is for a wreck that met a mine in the closing days of WWII. You can still make out the superstructure, the outline of the bridge, and even what looks like the gun mount at the bow. It’s a medium-sized vessel, a launch, so you can easily circumnavigate it in one dive, really getting a feel for its scale. Our favourite part is the engine room access. It’s a tight squeeze, not for everyone, but if you’re comfortable with overhead environments and good on your trim, peeking inside is genuinely cool – you can almost picture the engineers at their stations. Outside, the wreck is a magnet for marine life. Schools of damselfish shimmer around the masts, and we’ve often spotted conger eels tucked into the darker crevices, their heads poking out, eyeing you as you drift past. It’s a quiet, reflective dive, perfect for wreck enthusiasts who appreciate a good story and a well-preserved piece of maritime past.

    Typical HMML 558 Dive Profile

    10m20m30mSafety Stop0m27m max~30 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

    Depth of 27m - Advanced Open Water 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.

    Today06:1717:3011h 13m daylightGolden hour 16:50

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    Conditions

    Ocean conditions, forecast and tides for HMML 558

    HMML 558 Ocean Conditions

    Monthly averages for HMML 558, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (45.08, 14.15) (21km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    20°C

    68°F · Range: 18.4–22.3°C

    Current Speed

    3.16 cm/s

    Direction: W (288.4°)

    Salinity

    37.74 PSU

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)

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