15-30m
    Alonissos Marine Park, Greece
    THALASSIA PERIOCHI PAFSANIA – YPOTHALASSIA IFAISTEIA METHANON

    Avantis III

    Best months: Jul–Sep

    Protected Area

    THALASSIA PERIOCHI PAFSANIA – YPOTHALASSIA IFAISTEIA METHANON

    Why dive here

    Avantis III 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 15-30m

    The Avantis III is one of those Mediterranean wrecks that just *feels* historic, even without knowing its backstory. We love it because it’s not just a pile of metal; it’s a fully formed ecosystem now, a proper reef in its own right. As you descend, the shape of the cargo ship emerges from the blue, usually around 20-25 metres, sloping down to a maximum depth of maybe 35 metres at the bow. The stern is our favourite part, with the propeller and rudder still largely intact, hosting a surprising number of scorpionfish and moray eels tucked into the crevices. We’ve had some incredible moments here, with schools of barracuda circling the mast structure, sometimes so thick they almost blot out the sun. The ambient light filtering through the water around the wreck’s superstructure is quite something, especially on a sunny afternoon. Inside the hull, if you’re comfortable with some wreck penetration, you’ll find plenty of open spaces, light streaming in through collapsed sections, and walls covered in colourful sponges and sea fans. It’s not a challenging wreck in terms of current, usually, but we’d suggest timing your dive for mid-morning when the light is best and boat traffic from the nearby island is still light. This site is a definite standout for anyone who appreciates a good wreck dive combined with thriving marine life.

    Typical Avantis III Dive Profile

    5m10m15mSafety Stop0m15m max~50 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.

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today06:3217:5711h 25m daylightGolden hour 17:22

    Avantis III Wreck History

    Vessel Type

    cargo ship

    Cause

    unknown

    Resting in the protected waters of the Alonissos Marine Park, the Avantis III is a popular dive site whose specific history remains shrouded in mystery. As one of the many wrecks accessible within this historic Greek archipelago, it forms part of an incredible underwater museum. The marine park is famous for its pioneering work in opening ancient wrecks to divers, and sites like the Avantis III benefit from the same pristine conditions and protected status.

    Diving the Avantis III offers a quintessential Mediterranean wreck experience. The vessel lies in famously clear blue water, allowing for fantastic visibility on most days. Over the years, it has transformed into a thriving artificial reef, attracting large schools of fish, moray eels, and octopuses who have made the ship's metal structure their home. It's a dive that combines the thrill of wreck exploration with the vibrant biodiversity of a protected marine sanctuary.

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    Conditions

    Ocean conditions, forecast and tides for Avantis III

    Avantis III Ocean Conditions

    Monthly averages for Avantis III, 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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