P.T. 555 - Medes Islands
The P.T. 555 is a proper wreck dive, not just a pile of rubble. We’re talking about a torpedo boat, sunk by a mine back in 1944. She sits upright at 46 metres, which means this is one for the experienced trimix crowd, no question. Dropping down, you start to make out the shape, the bow pointing into the blue, and the superstructure still largely intact. It’s got a real eerie atmosphere down there, especially when the light shifts. What we love about the P.T. 555 is how much character the wreck retains. You can trace the lines of the vessel, peer into open hatches. Inside, it’s dark, silty, but the beams of your torch pick out details – pipes, machinery, evidence of its working life. The marine life has really taken hold too, with thick encrustations of sponges and gorgonians on the deck and hull. Look for conger eels poking their heads from the darker recesses and schools of small fish darting in and out of the structure. Our favourite spot is the stern, where the propeller is still clearly visible. It’s a quiet, reflective dive, perfect for those who appreciate history and the slow reclamation of the ocean.
- Location
- Medes Islands, Spain, Mediterranean & Europe
- Coordinates
- 43.332333, 4.998667
- Type
- wreck
- Maximum Depth
- 46m
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 P.T. 555
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 P.T. 555
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