46m
    Medes Islands, Spain

    P.T. 555

    Best months: Jun–Sep

    Why dive here

    With 77+ marine species recorded in the area - including blue sharks, dolphins, ocean sunfish (mola mola), octopuses and sea turtles - P.T. 555 offers some of Medes Islands's richest wreck diving. Water ranges 14-24°C, warmest July, August, September.

    Best timeJun–Sep
    WetsuitA 3mm full wetsuit
    Marine lifeBlue Sharks, Dolphins, Ocean Sunfish (Mola Mola), Octopuses and Sea Turtles · 77+ species recorded
    Water14-24°C · warmest July, August, September
    CharacterWreck dive · max 46m
    StandoutRich in charismatic marine life

    The P.T. 555 is a proper wreck dive, not just a pile of rubble. We’re talking about a torpedo boat, sunk by a mine back in 1944. She sits upright at 46 metres, which means this is one for the experienced trimix crowd, no question. Dropping down, you start to make out the shape, the bow pointing into the blue, and the superstructure still largely intact. It’s got a real eerie atmosphere down there, especially when the light shifts. What we love about the P.T. 555 is how much character the wreck retains. You can trace the lines of the vessel, peer into open hatches. Inside, it’s dark, silty, but the beams of your torch pick out details – pipes, machinery, evidence of its working life. The marine life has really taken hold too, with thick encrustations of sponges and gorgonians on the deck and hull. Look for conger eels poking their heads from the darker recesses and schools of small fish darting in and out of the structure. Our favourite spot is the stern, where the propeller is still clearly visible. It’s a quiet, reflective dive, perfect for those who appreciate history and the slow reclamation of the ocean.

    Typical P.T. 555 Dive Profile

    15m30m45mSafety Stop0m46m max~15 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

    Maximum depth 46m exceeds recreational limits (40m). Technical diving certification and equipment required.

    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.

    Today05:4917:0611h 16m daylightGolden hour 16:27

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    Conditions

    Ocean conditions, forecast and tides for P.T. 555

    P.T. 555 Ocean Conditions

    Monthly averages for P.T. 555, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (43.2, 5.22) (37km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    20°C

    69°F · Range: 17.4–22.8°C

    Current Speed

    9.85 cm/s

    Direction: SW (246°)

    Chlorophyll-a

    0.182 mg/m³

    Clear water

    Salinity

    38.21 PSU

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)

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