Wreck of U-331 - Balearic Islands
The U-331 wreck in the Balearics always delivers a quiet thrill. This Type VIIC U-boat, sunk in 1942, sits deep, typically in the 70-meter range, so it's one for the technical crowd. The sheer scale of it, lying on its side, is what truly impresses. We love how intact the conning tower remains, often swarming with schools of barracuda that shimmer in the ambient light. Dropping down, the bow section is especially atmospheric, with open torpedo tubes hinting at its wartime purpose. Inside, the pressure hull is largely collapsed in places, but you can still make out the outline of the control room. Look for lobsters tucked into every crevice and the occasional large grouper patrolling the stern. Our favourite detail is the anti-aircraft gun mount, now a solid platform for anemones and sponges. It’s a serious dive, requiring experience with deep stops and gas management, but for those with the training, it’s a tangible piece of history that’s become a thriving artificial reef. We always suggest keeping a keen eye on your bottom time here; it’s easy to get lost in the details.
- Location
- Balearic Islands, Spain, Mediterranean & Europe
- Coordinates
- 37.083332, 2.450000
- Type
- wreck
Best Time to Dive in Balearic Islands
The warmest water temperatures in Balearic Islands occur in August, averaging 27.4°C. The coolest conditions are in February at 14.8°C.
Monthly Water Temperatures
- January: 15.3°C
- February: 14.8°C
- March: 15.2°C
- April: 16.4°C
- May: 19.3°C
- June: 22.5°C
- July: 26.2°C
- August: 27.4°C
- September: 25.9°C
- October: 23.4°C
- November: 19.6°C
- December: 16.5°C
Nearby Dive Sites in Balearic Islands
- ALBATROS - 10m (wreck)
- ALMADRABERO - 40m (wreck)
- APOLONIA - 20m (wreck)
- Arco de Formentera (cave)
- Barcos de Burriana (wreck)
- Bufador de son solomo
- cala calafat
- CALA DEL VIDRE
- CALA D'OR - 1m (wreck)
- Cala en Porter East
- Calafat Playa
- Cala Figuera
- Cala fornells
- Cala Galiota - 5-20m (reef)
- CALA GAT - 18m (wreck)
Nearest Dive Centres to Wreck of U-331
Marine Life in Balearic Islands
Home to 150 recorded species including 110 reef fish, 11 octopus & squid, 11 sharks & rays, 5 whales & dolphins, 4 crabs & lobsters, 3 other.
Notable Species
- loggerhead turtle (Caretta caretta)
- hake (Merluccius merluccius) - Reef Fish
- Pollock (Trachurus trachurus) - Reef Fish
- Boarfish (Capros aper) - Reef Fish
- blue whiting (Micromesistius poutassou) - Reef Fish
- Jac (Helicolenus dactylopterus) - Reef Fish
- Curled octopus (Eledone cirrhosa) - Octopus & Squid
- Black-bellied angler (Lophius budegassa) - Reef Fish
- Dark Tonguefish (Symphurus nigrescens) - Reef Fish
- Bogue (Boops boops) - Reef Fish
- conger (Conger conger) - Reef Fish
- Red Band-fish (Cepola macrophthalma) - Reef Fish
- Mullet (Mullus barbatus) - Reef Fish
- Norway Lobster (Nephrops norvegicus) - Crabs & Lobsters
- Common Bobtail (Sepietta oweniana) - Octopus & Squid
- red mullet (Mullus surmuletus) - Reef Fish
- poor cod (Trisopterus minutus) - Reef Fish
- Lanternfish (Lampanyctus crocodilus) - Reef Fish
- Brown Comber (Serranus hepatus) - Reef Fish
- dogfish (Scyliorhinus canicula) - Sharks & Rays
Recommended Packing List for Wreck of U-331
Based on average water temperature of 20.2°C, currents 12 cm/s.
- Wetsuit (3-5mm) - comfortable for 20°C water
- 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