West Coast, Ireland

    HMS Transylvania

    Best months: Jul–Aug

    Why dive here

    With 169+ marine species recorded in the area - including dolphins, dwarf minke whales, humpback whales, ocean sunfish (mola mola) and octopuses - HMS Transylvania offers some of West Coast's richest wreck 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
    CharacterWreck dive
    StandoutExceptional marine biodiversity

    The HMS Transylvania wreck is one of those dives that feels like a real pilgrimage. She was a grand liner, then a WWI armed merchant cruiser, sunk by a U-boat in 1917. Now she rests in deeper water off the West Coast of Ireland, a truly impressive hulk. We typically find the conditions here can be challenging, with strong currents and reduced visibility not uncommon, but on a good day, it’s absolutely worth the effort. Dropping down onto her, the sheer scale hits you. This isn’t some small fishing boat; it’s a substantial liner, her structure still remarkably intact in places. We’ve found the stern section particularly interesting, with huge prop shafts and rudder components still visible. It’s a proper expedition, exploring the debris field and penetration points for those with the right training and gear. You’ll spot conger eels in the deeper crevices, and often schools of pollack hanging over the superstructure. It's a dive for experienced wreck divers who appreciate history and don't mind a bit of a challenge. Our pick for when you want a dive that truly tests your mettle and rewards you with a tangible piece of history.

    Safety Notes

    Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.

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

    Today05:5616:4510h 49m daylightGolden hour 15:54

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    Conditions

    Ocean conditions, forecast and tides for HMS Transylvania

    HMS Transylvania Ocean Conditions

    Monthly averages for HMS Transylvania, 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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