45m
    Marseille & Calanques, France
    Port-Cros

    TRONCON (STERN)

    Best months: Aug

    Protected Area

    Port-Cros

    Why dive here

    With 157+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and mobula rays (devil rays) - TRONCON (STERN) offers some of Marseille & Calanques's richest wreck diving. Water ranges 14-25°C, warmest July, August, September.

    Best timeAug
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBlue Sharks, Dolphins, Dwarf Minke Whales, Humpback Whales and Mobula Rays (Devil Rays) · 157+ species recorded
    Water14-25°C · warmest July, August, September
    CharacterWreck dive · max 45m
    StandoutExceptional marine biodiversity

    The Tronçon, or what’s left of its stern anyway, lies in a manageable 45 metres, an inviting deep dive for those comfortable with their buoyancy. We’ve always found this wreck to have a real sense of history, even if you’re only looking at half a ship. Dropping down, the stern section emerges from the blue, usually with good visibility allowing you to appreciate the scale. The propeller is a particular highlight, often draped in gorgonians and swarming with anthias, a pop of colour against the rusted metal. Exploring the various deck levels, you’ll find cracks and crevices providing homes for lobsters and conger eels. We love how the Mediterranean marine life has truly reclaimed this space; it feels more like an artificial reef than a tragic sunken vessel. If you time your dive for late morning, the sunlight filtering through the water can create some dramatic lighting effects around the wreck, a truly atmospheric experience. It’s a rewarding dive for advanced divers seeking a proper wreck exploration without extreme depths or currents.

    Typical TRONCON (STERN) Dive Profile

    15m30m45mSafety Stop0m45m max~15 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

    Maximum depth 45m exceeds recreational limits (40m). Technical diving certification and equipment required.

    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.

    Today05:4417:0111h 17m daylightGolden hour 16:23

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    Conditions

    Ocean conditions, forecast and tides for TRONCON (STERN)

    TRONCON (STERN) Ocean Conditions

    Monthly averages for TRONCON (STERN), sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (43.11, 5.89) (32km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    21°C

    69°F · Range: 15.7–23.1°C

    Air Temperature

    18°C

    64°F

    Wind Speed

    6.69 m/s

    13.0 knots

    Atmospheric Pressure

    1016.9 hPa

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

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