Alonissos Marine Park, Greece

    HMS Goliath

    Best months: Jul–Sep

    Why dive here

    HMS Goliath 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

    The HMS Goliath wreck, lying in the Alonissos Marine Park, is a real deep dive into history. It's not just a pile of metal, it’s a pre-dreadnought battleship from 1898, and that heritage gives it a genuine gravitas. We love how the sheer scale of it hits you, especially when you descend and see the bow loom out of the blue, still looking formidable even after all these years. Exploring the Goliath is less about penetration and more about appreciating the structure, the way the deck plates are draped in colourful sponges, and the gun turrets now serving as apartment blocks for schools of damselfish. Our favourite is the stern, where the propeller shaft is still visible, a testament to the engineering of its time. Keep an eye out for the resident groupers, they’re often found patrolling the larger openings. This dive suits experienced wreck enthusiasts who appreciate historical context over coral gardens, and it's best dived in the morning before any afternoon thermoclines set in. Be prepared for potentially strong currents; it’s an exposed site.

    Safety Notes

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

    Today06:2217:4411h 22m daylightGolden hour 17:07

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    Conditions

    Ocean conditions, forecast and tides for HMS Goliath

    HMS Goliath Ocean Conditions

    Monthly averages for HMS Goliath, 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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