2m
    Alonissos Marine Park, Greece
    Periochi dimon Argous kai Mideas (perioches 5 kai 5a)

    FOUR SEA

    Best months: Jul–Sep

    Protected Area

    Periochi dimon Argous kai Mideas (perioches 5 kai 5a)

    Why dive here

    FOUR SEA 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 2m

    FOUR SEA isn't your typical deep Mediterranean wreck, and that's precisely why we love it. Sunk in 1988, this motor vessel grounded en route from the UK to Kavala, eventually making its final resting place in the shallows of Alonissos Marine Park. Forget heavy gear and decompression stops here; the wreck sits at a maximum depth of two metres, making it perfect for snorkelers, freedivers, and even curious beginners taking their first breaths on scuba. What you get is a sun-drenched, accessible time capsule. The stern, in particular, is a real favourite of ours. You can fin right over the deck, peering into the cargo holds where light plays off the decaying metal. Schools of damselfish shimmer around the superstructure, and if you look closely, you'll spot tiny blennies darting into crevices. We’ve seen octopuses here more times than we can count, often camouflaged so well against the rusting hull you almost swim right past them. It’s a gentle exploration, utterly devoid of the pressure of deeper dives, yet still packed with history and life. Go early in the morning for the best light and fewest fellow explorers.

    Typical FOUR SEA Dive Profile

    Safety Stop0m2m 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.

    Today06:3217:5811h 26m daylightGolden hour 17:23

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    Conditions

    Ocean conditions, forecast and tides for FOUR SEA

    FOUR SEA Ocean Conditions

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

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    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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