KASTOR - Bornholm

Kastor is a peculiar one, and we love it for being so accessible. This isn't your deep, technical wreck dive; the old schooner lies in just a metre of water, a real shallow splash-and-go. It went down back in 1901, though the records sometimes say 1950, which is just a bit of local colour for you. We’ve found the best way to experience Kastor is to go slow, really pick apart the details of the hull that’s now so broken up. You’ll see the wooden ribs poking out of the sand, a ghostly skeleton that’s become home to a surprising amount of life. Little crabs skitter through the cracks, and tiny blennies dart between the barnacle-encrusted timbers. It’s not about big pelagics here; it's about the intricate ecosystem that thrives on decay. We’d suggest a calm, sunny day to really appreciate the light playing on the wreck, enhancing the amber hues of the wood against the pale sand. It's a fantastic spot for snorkelers or new divers looking to get a feel for a wreck without the pressure of depth. Just watch out for stray bits of wood, it’s an old girl and she’s coming apart.

Location: Bornholm, Denmark, Mediterranean & Europe
Coordinates: 54.872500, 12.171945
Type: wreck
Maximum Depth: 1m

Marine Protected Area: Ulvsund, Grønsund og Farø Fjord

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 KASTOR

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 KASTOR

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