7m
    Alonissos Marine Park, Greece
    NISIDES SARONIKOU KOLPOU KAI THALASSIA PERIOCHI

    PIRAEUS II

    Best months: Jul–Sep

    Protected Area

    NISIDES SARONIKOU KOLPOU KAI THALASSIA PERIOCHI

    Why dive here

    PIRAEUS II is a wreck dive where divers can encounter dolphins and sea turtles. Water ranges 15-26°C, warmest July, August, September.

    Best timeJul–Sep
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeDolphins and Sea Turtles
    Water15-26°C · warmest July, August, September
    CharacterWreck dive · max 7m

    Piraeus II sits shallow, just seven metres down, making it one of our favourite easy wreck dives in Alonissos. It’s a 61-metre tanker, originally built in 1946, that went down after a fire in 1977. You can really feel the history as you fin over the deck, the metalwork now draped in green algae and orange sponges. We love how accessible this wreck is; you can spend ages just tracing the outline, peering into openings where the deck plates have collapsed. Schools of small damselfish shimmer above the superstructure, darting in and out of the rusted beams. Look closely, and you’ll spot scorpionfish camouflaged against the encrusted metal and nudibranchs grazing the sponges. The light here is fantastic, especially around midday, filtering through the water and illuminating the wreck’s contours. It’s an ideal spot for photographers and anyone new to wreck diving, offering plenty to see without any deep technical demands.

    Typical PIRAEUS II Dive Profile

    5mSafety Stop0m7m max~60 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

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

    Today06:3117:5611h 25m daylightGolden hour 17:20

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    Conditions

    Ocean conditions, forecast and tides for PIRAEUS II

    PIRAEUS II Ocean Conditions

    Monthly averages for PIRAEUS II, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (38.09, 24.15) (15km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    23°C

    73°F · Range: 21–25.6°C

    Current Speed

    1.41 cm/s

    Direction: SW (225°)

    Chlorophyll-a

    0.13 mg/m³

    Clear water

    Salinity

    34.63 PSU

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

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