HERRENWYK - North Sea Coast

Herrenwyk is a wreck we always enjoy, even if it’s a site that often gets overlooked. Dropping down to 14 metres, you’re greeted by the imposing bulk of a steamship, sunk back in 1942. It was originally the Swedish Martii Ragnar, a grand old girl built in 1912, then seized by the Germans before she hit a mine in Kiel Bay. We love tracing the deck, imagining her former glory. The wreck itself is home to so many critters, even without a species list to pull from. Expect to find conger eels peering from dark corners, and schools of cod often drift lazily above the superstructure. On a good visibility day, which can be hit or miss in the North Sea, the sheer scale of the 110-metre length is impressive, making for a proper exploration. Our favourite part is navigating the cargo holds, where sunlight, when it breaks through, creates an ethereal glow. It’s a dive for those who appreciate history and the way the sea reclaims its own, offering a rewarding experience for divers comfortable with wreck penetration.

Location
North Sea Coast, Denmark, Mediterranean & Europe
Coordinates
54.518536, 10.519431
Type
wreck
Maximum Depth
14m

Marine Protected Area: Marstal Bugt og den sydlige del af Langeland

Best Time to Dive in North Sea Coast

The warmest water temperatures in North Sea Coast occur in January, averaging 4.6°C. The coolest conditions are in December at 4.6°C.

Monthly Water Temperatures

  • January: 4.6°C (air: 3.3°C)
  • February: 4.6°C (air: 3.6°C)
  • March: 4.6°C (air: 4.1°C)
  • April: 4.6°C (air: 6.7°C)
  • May: 4.6°C (air: 11.2°C)
  • June: 4.6°C (air: 15.4°C)
  • July: 4.6°C (air: 16.2°C)
  • August: 4.6°C (air: 16.7°C)
  • September: 4.6°C (air: 14.7°C)
  • October: 4.6°C (air: 10.8°C)
  • November: 4.6°C (air: 6.9°C)
  • December: 4.6°C (air: 3.3°C)

Nearby Dive Sites in North Sea Coast

Nearest Dive Centres to HERRENWYK

Marine Life in North Sea Coast

Home to 105 recorded species including 55 reef fish, 9 crabs & lobsters, 8 other, 7 clams & mussels, 6 sea snails & nudibranchs, 5 seagrass & algae.

Notable Species

Recommended Packing List for HERRENWYK

Based on average water temperature of 4.6°C.

  • Drysuit - water at 5°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