Le Tromblon - Medes Islands
Le Tromblon, or the "Blunderbuss," is one of our favourite wreck dives in the Medes Islands, and it’s a site we’ve returned to many times. It's not a massive wreck, but what we love is its character and the way marine life has completely taken it over. The old cannonnière, a small patrol boat, lies broken in two sections, scattered across the seabed at around 20-30 metres. As you descend, the visibility often plays tricks on you, making the metal silhouettes appear and disappear in the blue. We always make a point of looking for the resident scorpionfish, perfectly camouflaged against the rust. You’ll weave through the fragmented hull, and in the nooks and crannies, you’re likely to spot red snapping shrimp waving their antennae. Look closely for painted combers darting in and out, and we’ve often found streaked gurnards grubbing in the sand nearby. The real thrill here is the feeling of diving through history, exploring a site that’s slowly being reclaimed by the sea. It's a dive that rewards slow exploration and a keen eye.
- Location
- Medes Islands, Spain, Mediterranean & Europe
- Coordinates
- 43.066654, 5.905554
- Type
- wreck
- Maximum Depth
- 18-30m
Best Time to Dive in Medes Islands
The warmest water temperatures in Medes Islands occur in August, averaging 23.1°C. The coolest conditions are in February at 13.3°C.
Monthly Water Temperatures
- January: 14.1°C
- February: 13.3°C
- March: 13.5°C
- April: 14.4°C
- May: 16.8°C
- June: 20.5°C
- July: 22.7°C
- August: 23.1°C
- September: 21.6°C
- October: 19.4°C
- November: 17.3°C
- December: 15.0°C
Nearby Dive Sites in Medes Islands
- Abyss Garden (wreck)
- Aiguablava
- Aigua Xelida - 10-30m (reef)
- Amphores du frioul
- Andromède
- ANGELA - 8m (wreck)
- Arche du plannier - 10-30m (cave)
- Arroyo
- Atoll Plongée (reef)
- AUDIERNE - 16m (wreck)
- Badia de Tamariu - 5-25m (reef)
- Barda de Fitor (wall)
- Barda de l'Illa Negra (wall)
- Barda de Pere el Flaquer (wall)
- BARTOLO - 28m (wreck)
Nearest Dive Centres to Le Tromblon
Marine Life in Medes Islands
Home to 78 recorded species including 56 reef fish, 8 sharks & rays, 5 octopus & squid, 4 whales & dolphins, 2 crabs & lobsters, 1 seagrass & algae.
Notable Species
- hake (Merluccius merluccius) - Reef Fish
- Moonfish (Mola mola) - Reef Fish
- Capelin (Trisopterus capelanus) - Reef Fish
- grey gurnard (Eutrigla gurnardus) - Reef Fish
- Mediterranean tapeweed (Posidonia oceanica) - Seagrass & Algae
- Black-bellied angler (Lophius budegassa) - Reef Fish
- Atlantic Spotted Flounder (Citharus linguatula) - Reef Fish
- dogfish (Scyliorhinus canicula) - Sharks & Rays
- Thornback skate (Raja clavata) - Sharks & Rays
- Mullet (Mullus barbatus) - Reef Fish
- Pollock (Trachurus trachurus) - Reef Fish
- lesser argentine (Argentina sphyraena) - Reef Fish
- conger (Conger conger) - Reef Fish
- Blue-white Dolphin (Stenella coeruleoalba) - Whales & Dolphins
- blue whiting (Micromesistius poutassou) - Reef Fish
- Red Band-fish (Cepola macrophthalma) - Reef Fish
- Gurnard (Trigla lyra) - Reef Fish
- Soldier (Chelidonichthys cuculus) - Reef Fish
- Jac (Helicolenus dactylopterus) - Reef Fish
- Norway Lobster (Nephrops norvegicus) - Crabs & Lobsters
Recommended Packing List for Le Tromblon
Based on average water temperature of 17.6°C, currents 14 cm/s.
- Wetsuit (5-7mm) - recommended for 18°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