BLUE MIST (POSSIBLY) - Marseille & Calanques

The *Blue Mist* is one of those wrecks we keep coming back to. No, it's not a massive freighter, but this sailing vessel, sunk by an explosion in '74, just has a certain charm. Sitting upright in only 18 metres, it’s a brilliant dive for those looking for a relaxed exploration. The visibility here can be surprisingly good, letting you see the whole shape of the hull as you descend, a dark outline against the blue. We love finning slowly along the deck, imagining the final moments. The explosion ripped through the stern, leaving a dramatic tangle of metal and twisted wood. It's an easy swim around the whole structure, and you'll find clouds of damselfish flitting in and out of the broken mast sections. Look closer in the shadows; moray eels often peer out from under the collapsed decking, and the hull is now home to countless tube worms. Our favourite trick is to go early, before the dive boats from Marseille clog the surface. It gives the wreck a quiet dignity it deserves. Bring a good torch; the interior, though small, offers some interesting dark corners for curious eyes. It’s perfect for divers who appreciate history and don't mind a compact, characterful wreck.

Location
Marseille & Calanques, France, Mediterranean & Europe
Coordinates
43.268135, 5.301233
Type
wreck
Maximum Depth
18m

Wreck History - BLUE MIST (POSSIBLY)

Year Sunk
1974
Vessel Type
sailing vessel
Cause
unknown

The story of the Blue Mist is one of sudden violence and lingering mystery. In July 1974, this sailing vessel was cruising in the beautiful Marseilles Bay when it was torn apart by a massive explosion off Port du Frioul. The vessel sank immediately, leaving questions about the cause of the catastrophic event unanswered to this day.

Located at a very manageable depth of 18 meters, the wreck is accessible to most certified divers, but it comes with a significant warning: it is classified as a 'Dangerous Wreck'. The force of the explosion likely left behind a chaotic field of sharp, twisted metal and potential entanglement hazards. Cautious divers will find a fascinating, if somber, site to explore, piecing together the vessel's final moments from the scattered evidence on the seafloor.

Marine Protected Area: Iles du frioul

Best Time to Dive in Marseille & Calanques

The warmest water temperatures in Marseille & Calanques occur in January, averaging 13.9°C. The coolest conditions are in December at 13.9°C.

Monthly Water Temperatures

  • January: 13.9°C (air: 8.8°C)
  • February: 13.9°C (air: 10.5°C)
  • March: 13.9°C (air: 11.6°C)
  • April: 13.9°C (air: 13.8°C)
  • May: 13.9°C (air: 17.8°C)
  • June: 13.9°C (air: 22.3°C)
  • July: 13.9°C (air: 24.9°C)
  • August: 13.9°C (air: 24.7°C)
  • September: 13.9°C (air: 21.3°C)
  • October: 13.9°C (air: 17.8°C)
  • November: 13.9°C (air: 13.2°C)
  • December: 13.9°C (air: 9.9°C)

Nearby Dive Sites in Marseille & Calanques

Nearest Dive Centres to BLUE MIST (POSSIBLY)

Marine Life in Marseille & Calanques

Home to 163 recorded species including 101 reef fish, 17 sharks & rays, 10 whales & dolphins, 6 crabs & lobsters, 6 octopus & squid, 5 hard corals.

Notable Species

Recommended Packing List for BLUE MIST (POSSIBLY)

Based on average water temperature of 13.9°C.

  • Wetsuit (5-7mm) - recommended for 14°C water
  • Hood & Gloves (3-5mm) - helps retain warmth
  • Mask - essential for every dive
  • Fins
  • BCD - buoyancy compensator
  • Regulator - your most safety-critical piece of gear
  • Dive Computer - tracks depth, time, and NDL
  • Surface Marker Buoy (SMB) - essential for boat pickups
  • Dive Torch - useful for crevices and colour at depth
  • Underwater Camera - capture your diving memories