TRONCON (BOW)
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.
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
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.
Nearest Dive Centres to TRONCON (BOW)
Dive shops near TRONCON (BOW)
Porquerolles Plongée
Dune La Londe
Ulysse Plongée
Scubazar
PlongeeO
SAINT P HYERES PLONGEE
Reviews for TRONCON (BOW)
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)
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
Plan & book
Ways to dive Marseille & Calanques, from day trips to liveaboards.
Day trips & courses
via GetYourGuideGuided dives, courses and snorkel trips with instant booking.
Find dive trips in Marseille & CalanquesPlaces to stay
via Booking.comHotels and dive resorts near Marseille & Calanques.
Search stays in Marseille & CalanquesDive insurance
Most travel insurance excludes or limits scuba. Check what you need before you go.
Dive insurance explainedPartner links: we may earn a commission if you book, at no extra cost to you. How we make money
Where to Stay near TRONCON (BOW)
Prices from Booking.com. We may earn a commission at no extra cost to you.
