BENININ (POSSIBLY) - Cornwall & Devon

We love a good mystery, and the wreck known as BENININ (POSSIBLY) off Cornwall is exactly that. It’s definitely not a submarine, despite the old Nautical Magazine reports, and that’s part of its charm. You’re descending onto a steamship, 45 metres of history that’s been sitting on the seabed since 1940. The bow section feels particularly dramatic, often shrouded in a green twilight, with the plating now an uneven canvas for dead man's fingers and anemones. Visibility here can be a bit of a lottery, as is typical for the UK, but on a good day, the structure emerges with real grandeur. We’ve had dives where large conger eels peered from every accessible hole, their thick bodies disappearing into the gloom. Schools of pouting and bib weave through the collapsed hold, making it feel alive despite the wreck's silent state. This site really suits divers who appreciate a wreck with a story, even if it’s an unsolved one. It’s not about bright colours, but about the atmosphere, the history, and the rugged beauty of a metal hulk reclaimed by the ocean.

Location
Cornwall & Devon, United Kingdom, Mediterranean & Europe
Coordinates
51.492600, -4.068600
Type
wreck
Maximum Depth
27m

Wreck History - BENININ (POSSIBLY)

Year Sunk
1940
Vessel Type
cargo ship
Cause
gunfire

The story of this wreck is shrouded in the fog of war and conflicting reports. The official record states that on Easter Monday, 1940, a Royal Naval Reserve patrol vessel engaged and sank a suspected enemy submarine with gunfire in the English Channel. For years, the site was marked on charts as a U-boat, a casualty of the early, tense days of World War II.

However, when divers finally reached the wreck, they discovered not a sleek submarine, but the remains of a small, 45-meter steamship. Its true identity remains a mystery, with the name "Beninin" being a tentative and unconfirmed label. It's likely a small coastal freighter or trawler that was in the wrong place at the wrong time, tragically misidentified in the heat of the moment. The exact circumstances of its sinking are lost to history, adding a layer of intrigue to the dive.

Lying at a depth of 27 meters, the wreck is a fascinating site for intermediate divers. Though broken up, key features like the boiler are still recognizable. Exploring the scattered remains offers a unique chance to connect with a piece of wartime history, where the official story and the underwater reality tell two different tales.

Marine Protected Area: Pwll-Du Head And Bishopston Valley

Best Time to Dive in Cornwall & Devon

The warmest water temperatures in Cornwall & Devon occur in January, averaging 9.6°C. The coolest conditions are in December at 9.6°C.

Monthly Water Temperatures

  • January: 9.6°C (air: 7.3°C)
  • February: 9.6°C (air: 8.4°C)
  • March: 9.6°C (air: 8.6°C)
  • April: 9.6°C (air: 10.1°C)
  • May: 9.6°C (air: 12.6°C)
  • June: 9.6°C (air: 15.2°C)
  • July: 9.6°C (air: 16.6°C)
  • August: 9.6°C (air: 17.1°C)
  • September: 9.6°C (air: 15.9°C)
  • October: 9.6°C (air: 13.5°C)
  • November: 9.6°C (air: 10.7°C)
  • December: 9.6°C (air: 8.7°C)

Nearby Dive Sites in Cornwall & Devon

Nearest Dive Centres to BENININ (POSSIBLY)

Marine Life in Cornwall & Devon

Home to 192 recorded species including 93 reef fish, 18 sharks & rays, 13 whales & dolphins, 11 crabs & lobsters, 11 other, 10 seagrass & algae.

Notable Species

Recommended Packing List for BENININ (POSSIBLY)

Based on average water temperature of 9.6°C.

  • Drysuit - water at 10°C demands a drysuit with thermal undergarments
  • Hood & Gloves (7mm+) - critical to prevent heat loss
  • 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