DivePlnr
    Big cave dive site
    cave
    15-30m
    Istria Peninsula, Croatia
    Cres - rt Grota - Merag

    Big cave

    Best months: Jul–Aug

    Protected Area

    Cres - rt Grota - Merag

    Why dive here

    With 46+ marine species recorded in the area - including dolphins, sea turtles and cuttlefish - Big cave 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 · max 15-30m
    StandoutDramatic cave topography

    Big Cave in Istria offers a true cave diving experience, less about coral and more about the geology. You'll navigate through large chambers, appreciating the rock formations and the interplay of light from the entrance. It's a site best suited for divers comfortable in overhead environments and those keen on exploring the peninsula's unique underwater topography.

    Typical Big cave Dive Profile

    5m10m15mSafety Stop0m15m max~50 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

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

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today06:1317:2711h 13m daylightGolden hour 16:47

    Nearest Dive Centres to Big cave

    Dive shops near Big cave

    Buborek DC

    7km away
    Web
    Phone
    Courses
    Rental

    diving Cres

    12km away
    Web

    Sea Mates

    12km away
    Web
    Phone
    Courses
    Rental

    Fun Diving Krk

    16km away
    Web
    Phone
    Courses
    Rental

    Diving Center

    16km away

    Scuba Center Sv. Marina

    17km away
    Web
    View all dive centres in Istria Peninsula

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    Conditions

    Ocean conditions, forecast and tides for Big cave

    Big cave Ocean Conditions

    Monthly averages for Big cave, 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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