Wreck of Grace Dieu - Cornwall & Devon

The SMS Dresden, sunk in Scapa Flow’s murky embrace, isn’t just a wreck; it’s a time capsule. We love the sheer scale of this Cöln-class cruiser, settled on her port side, giving you a unique perspective as you descend. Your torch beam cuts through the green gloom, picking out the giant rivets, the gaping holes from scuttling charges, and the ghostly skeletal remains of her superstructure. We always feel a profound sense of history here, a real connection to that dramatic day in 1919. This is a dive for the experienced, for those who appreciate the challenge and the story. You’ll weave through her massive hull, perhaps catching a bull rout peering from a porthole or the vibrant jewel anemones clinging to corroded steel. Our favourite part is finding those subtle details, like the remnants of deck plating or a stray pipe, now completely colonised by delicate Ribbon Weed. Visibility can be a challenge, so a good dive light is essential, and going at slack tide makes exploration far more enjoyable. It’s a cold, dark dive, but the reward is immense.

Location
Cornwall & Devon, United Kingdom, Mediterranean & Europe
Coordinates
50.891666, -1.288480
Type
wreck

Marine Protected Area: Hackett's Marsh

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 Wreck of Grace Dieu

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 Wreck of Grace Dieu

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