45m
    Marseille & Calanques, France
    Port-Cros

    TRONCON (BOW)

    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 (BOW) 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 “Bow” in French, is exactly what it sounds like – the separated bow section of a larger wreck, likely blown apart during wartime. It sits upright, proud on the seabed at 45 metres, a stark, dramatic sight as it emerges from the blue. We love how the bow offers a contained, yet incredibly rich, deep wreck experience without the full commitment of an entire ship. It’s a perfect dive for those comfortable with depth, perhaps looking to refine their wreck skills before tackling something bigger. The metal structure itself is a canvas for marine life; walls of jewel anemones cling to the plates, catching the light, and we’ve often found conger eels peeking out from darker recesses. Look closely for scorpionfish camouflaged against the rust. Our favourite tip? Get there early on a calm day; the visibility can be exceptional, letting you appreciate the sheer scale of the bow from a distance before you get up close. It really feels like you’re dropping into history.

    Typical TRONCON (BOW) 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 (BOW)

    TRONCON (BOW) Ocean Conditions

    Monthly averages for TRONCON (BOW), 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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