37m
    Intermediate
    Portofino & Liguria, Italy
    Fondali Anzo

    Relitto Colosso

    Best months: Jul–Aug

    Protected Area

    Fondali Anzo

    Why dive here

    With 70+ marine species recorded in the area - including blue sharks, dolphins, humpback whales, mobula rays (devil rays) and oceanic whitetip sharks - Relitto Colosso offers some of Portofino & Liguria's richest wreck diving. Water ranges 14-27°C, warmest July, August, September.

    Best timeJul–Aug
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBlue Sharks, Dolphins, Humpback Whales, Mobula Rays (Devil Rays) and Oceanic Whitetip Sharks · 70+ species recorded
    Water14-27°C · warmest July, August, September
    CharacterWreck dive · max 37m
    StandoutRich in charismatic marine life

    The Relitto Colosso, resting at 37 metres, is one of those wrecks that just hits right, especially if you appreciate a bit of history with your bottom time. It’s an old cargo ship, sunk during World War II, broken into a few major sections that have settled upright, giving it a ghost ship vibe as you descend. We love how the hull is encrusted with sponges and gorgonians, bright red and orange against the steel, with clouds of damselfish and small schools of bream darting in and out of the darker spaces. Exploring the bow and stern sections, you can poke around the hold, where groupers sometimes lurk, quite unafraid. Our favourite part is the bridge section, where you can still make out the outline of the wheelhouse. It’s a dive that rewards slow exploration, letting your eyes adjust to the ambient light filtering through the Mediterranean blue. Current here can pick up, so we’d suggest timing your dive for slack tide, usually found by asking the local dive shop. It's an intermediate dive, really, for those comfortable with the depth and a bit of overhead environment.

    Typical Relitto Colosso Dive Profile

    15m30mSafety Stop0m37m max~20 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

    Deep dive (37m) - monitor air consumption closely. Advanced certification recommended.

    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.

    Today06:3217:4711h 15m daylightGolden hour 17:08

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    Conditions

    Ocean conditions, forecast and tides for Relitto Colosso

    Relitto Colosso Ocean Conditions

    Monthly averages for Relitto Colosso, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (44.38, 9.02) (43km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    21°C

    70°F · Range: 19–23.2°C

    Air Temperature

    18°C

    64°F

    Wind Speed

    4.49 m/s

    8.7 knots

    Atmospheric Pressure

    1017.3 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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