DivePlnr
    The Tunnel dive site
    cave
    West Coast, Ireland
    Dingle Peninsula SPA

    The Tunnel

    Best months: Jul–Aug

    Protected Area

    Dingle Peninsula SPA

    Why dive here

    With 169+ marine species recorded in the area - including dolphins, dwarf minke whales, humpback whales, ocean sunfish (mola mola) and octopuses - The Tunnel offers some of West Coast's richest cave diving. Water ranges 8-17°C, warmest July, August, September.

    Best timeJul–Aug
    WetsuitA 5mm wetsuit
    Marine lifeDolphins, Dwarf Minke Whales, Humpback Whales, Ocean Sunfish (Mola Mola) and Octopuses · 169+ species recorded
    Water8-17°C · warmest July, August, September
    CharacterCave dive
    StandoutExceptional marine biodiversity

    The Tunnel, on Ireland’s West Coast, offers a proper cave diving experience. It's a challenging site, really, with overhead environments and limited light, so we'd suggest it for experienced cave divers only. You’ll navigate through narrow passages, often with some surge, giving a raw feel of the ocean's power. It’s less about abundant marine life and more about the geology and the thrill of the exploration.

    Safety Notes

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

    Cold water this month (avg 14°C). Drysuit or thick wetsuit (7mm+) recommended.

    Today05:5916:5710h 58m daylightGolden hour 16:11

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    Conditions

    Ocean conditions, forecast and tides for The Tunnel

    The Tunnel Ocean Conditions

    Monthly averages for The Tunnel, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (53.32, -9.66) (22km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    14°C

    56°F · Range: 11.7–15.4°C

    Air Temperature

    12°C

    54°F

    Wind Speed

    8.2 m/s

    15.9 knots

    Atmospheric Pressure

    1007.4 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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