HEIDRUN - Cornwall & Devon

The Heidrun is one of those wrecks that just delivers. Not too deep at 30 metres, so you get decent bottom time, and usually, the visibility holds pretty well here. We love dropping down onto her, seeing the stern section first, then finning along the intact deck towards the boilers. They’re a classic sight, standing proud and covered in plumose anemones – pure white in the torch beam, swaying gently in the subtle surge. It’s an older steamship, built in 1871, carrying anthracite when she went down in 1918. That age means the structure is well-colonised. Expect to find conger eels tucked into every dark crevice and schools of pollock circling above the main hull. Our favourite part is exploring the holds; they’re quite open and you can safely penetrate a little way, feeling the weight of history around you. For divers who appreciate characterful older wrecks and aren't afraid of a bit of chill, the Heidrun is a fantastic dive, offering a real sense of exploration.

Location
Cornwall & Devon, United Kingdom, Mediterranean & Europe
Coordinates
50.024834, -5.327333
Type
wreck
Maximum Depth
30m

Marine Protected Area: Baulk Head to Mullion

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 HEIDRUN

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 HEIDRUN

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