UB 65 - Cornwall & Devon

The UB 65 is a submarine wreck sitting upright at 54 metres, a proper deep dive that often requires trimix. It went down in 1918, a U-boat that’s relatively intact for its age and depth. We usually find the conning tower still identifiable, and the gun mount stands out against the gloom. Schools of whiting often mill around the structure, and conger eels are not uncommon in the darker recesses, peering out from open hatches. This is a site for experienced technical divers, offering a tangible piece of history rather than colourful reefs.

Location
Cornwall & Devon, United Kingdom, Mediterranean & Europe
Coordinates
50.668450, -5.035383
Type
wreck
Maximum Depth
54m

Marine Protected Area: Pentire Peninsula

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 UB 65

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 UB 65

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

Frequently Asked Questions

What is the approximate depth of the UB 65 shipwreck for divers?
The UB 65 shipwreck is found at an approximate depth of 54 meters. This makes it a deep dive, typically requiring advanced certifications for safe exploration.
What kind of marine life and historical features can divers expect to see on the UB 65 wreck?
The UB 65 wreck is a fascinating historical submarine, built in 1917 and sunk in 1918. Divers can explore its impressive features, including five 19.7-inch torpedo tubes and a 4.1-inch gun, spread across its 55.5m length. While specific marine life details are not provided, wrecks like this often serve as vibrant artificial reefs, attracting diverse marine species over time.
How challenging is the UB 65 dive site for recreational divers?
The UB 65 dive site is rated as intermediate difficulty. Given its depth of 54 meters, it is best suited for recreational divers who possess advanced certifications and experience with deep wreck diving.
What is the best time of year to dive the UB 65 shipwreck for optimal conditions?
The provided data does not specify the best time of year to dive the UB 65 shipwreck for optimal conditions. For the most current information on seasonal recommendations and conditions in Cornwall & Devon, it is advisable to consult local dive centers or check our When to Dive section.
What scuba diving certifications are typically required to dive the UB 65?
To safely dive the UB 65 at its depth of 54 meters and intermediate difficulty, divers typically need advanced certifications like PADI Advanced Open Water Diver with a Deep Diver specialty, or equivalent. Technical diving certifications may also be considered for those seeking longer bottom times or more extensive exploration of the wreck.
What are the typical underwater currents and visibility conditions at the UB 65 dive site off Cornwall?
The provided data does not include specific information regarding typical underwater currents or visibility conditions at the UB 65 dive site. Conditions in Cornwall & Devon can be variable, so it is highly recommended to consult local dive centers for the most current reports before planning your dive.