PIRAEUS II
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.
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
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.
Nearest Dive Centres to PIRAEUS II
Dive shops near PIRAEUS II
Balco sub
ACTIVE DIVER
Seals
School of Diving
Halkeas
Fantasea
Reviews for PIRAEUS II
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)
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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