Istria Peninsula, Croatia
    Špilja podno Kostrija (Vrbnička špilja)

    Grotte Vrbnik

    Best months: Jul–Aug

    Protected Area

    Špilja podno Kostrija (Vrbnička špilja)

    Why dive here

    With 46+ marine species recorded in the area - including dolphins, sea turtles and cuttlefish - Grotte Vrbnik offers some of Istria Peninsula's richest cave 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
    CharacterCave dive
    StandoutDramatic cave topography

    The Grotte Vrbnik offers a straightforward cave dive, opening into a decent-sized cavern with a good air pocket for surfacing. We’ve found the light filtering in from the entrance to be quite pretty, illuminating a clear, silty bottom. It’s a nice site for those looking for a relatively easy cave experience without strong currents or complex navigation. Visibility inside usually stays good unless a diver stirs up the floor.

    Safety Notes

    Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.

    Today06:1217:2511h 13m daylightGolden hour 16:46

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    Conditions

    Ocean conditions, forecast and tides for Grotte Vrbnik

    Grotte Vrbnik Ocean Conditions

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

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    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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