24m
    Beginner
    Istria Peninsula, Croatia

    Schloss Heroldeck, Millstätter See

    Best months: Jul–Aug

    Why dive here

    With 46+ marine species recorded in the area - including dolphins, sea turtles and cuttlefish - Schloss Heroldeck, Millstätter See 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 24m

    Schloss Heroldeck is a small tugboat, sitting upright at 24 metres. We’ve found plenty of small fish, blennies, and gobies living in the structure. The wreck is intact enough for a good poke around the bridge and engine room, making it a decent introductory wreck dive for beginners.

    Typical Schloss Heroldeck, Millstätter See Dive Profile

    10m20mSafety Stop0m24m 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 24m - 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.

    Today06:1817:2811h 10m daylightGolden hour 16:47

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    Conditions

    Ocean conditions, forecast and tides for Schloss Heroldeck, Millstätter See

    Schloss Heroldeck, Millstätter See Ocean Conditions

    Monthly averages for Schloss Heroldeck, Millstätter See, 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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