KOL-38 - Bornholm

The KOL-38 off Bornholm is a standout, particularly for those who appreciate wrecks with a bit of history etched into their steel. We love it because it’s not just a collection of twisted metal; it feels like a genuine time capsule resting at 51 metres. Descending, you can often feel the slight chill of the Baltic, even in summer, adding to the atmosphere. The wreck itself is a former fishing trawler, sunk deliberately after World War II, and it’s surprisingly intact, considering its age and depth. You'll find the wheelhouse still largely defined, and we've spent many minutes exploring the deck, imagining what life was like aboard. Schools of cod and pollock frequently hang around the superstructure, darting in and out of the openings where windows once were. Sometimes, a curious grey seal will pop in for a quick look at your bubbles, which is always a treat. Our favourite part is navigating the cargo hold, which is now home to an impressive collection of brittle stars and sea anemones. Visibility can swing here, from a murky 5 metres to a glorious 20, so checking conditions is key. We’d suggest a calm day with minimal surge for the best experience. This site is definitely one for experienced divers comfortable with deeper profiles and potential thermoclines.

Location: Bornholm, Denmark, Mediterranean & Europe
Coordinates: 54.599503, 15.973272
Type: wreck
Maximum Depth: 51m

Best Time to Dive in Bornholm

The warmest water temperatures in Bornholm occur in January, averaging 3.3°C. The coolest conditions are in December at 3.3°C.

Monthly Water Temperatures

January: 3.3°C (air: 3.1°C)
February: 3.3°C (air: 3.2°C)
March: 3.3°C (air: 3.9°C)
April: 3.3°C (air: 6.0°C)
May: 3.3°C (air: 10.9°C)
June: 3.3°C (air: 16.1°C)
July: 3.3°C (air: 17.4°C)
August: 3.3°C (air: 18.0°C)
September: 3.3°C (air: 15.7°C)
October: 3.3°C (air: 11.5°C)
November: 3.3°C (air: 7.1°C)
December: 3.3°C (air: 3.5°C)

Nearest Dive Centres to KOL-38

Marine Life in Bornholm

Home to 67 recorded species including 43 reef fish, 7 clams & mussels, 5 sea snails & nudibranchs, 4 crabs & lobsters, 2 starfish, 2 other.

Notable Species

Protestant (Clupea harengus) - Reef Fish
Atlantic cod (Gadus morhua) - Reef Fish
Fluke (Platichthys flesus) - Reef Fish
whiting (Merlangius merlangus) - Reef Fish
sprat (Sprattus sprattus) - Reef Fish
dab (Limanda limanda) - Reef Fish
Blue mussel (Mytilus edulis) - Clams & Mussels
Pollock (Trachurus trachurus) - Reef Fish
bull rout (Myoxocephalus scorpius) - Reef Fish
Ocean quahog (Arctica islandica) - Clams & Mussels
eel (Anguilla anguilla) - Reef Fish
four-bearded rockling (Enchelyopus cimbrius) - Reef Fish
New Zealand Mudsnail (Potamopyrgus antipodarum) - Sea Snails & Nudibranchs
anchovy (Engraulis encrasicolus) - Reef Fish
Common sea star (Asterias rubens) - Starfish
lumpsucker (Cyclopterus lumpus) - Reef Fish
saithe (Pollachius virens) - Reef Fish
Split (Scomber scombrus) - Reef Fish
Common cockle (Cerastoderma edule) - Clams & Mussels
Haddock (Melanogrammus aeglefinus) - Reef Fish

Recommended Packing List for KOL-38

Based on average water temperature of 3.3°C.

Drysuit - water at 3°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