P. MARJAANA - Baltic Coast

The P. MARJAANA isn't just a dive site, it’s a time capsule. We think it’s one of the best Baltic wrecks for divers who appreciate history and an almost spooky stillness. She’s shallow, sitting at 15 metres, which means decent bottom time and often surprising visibility for the region. You drop onto this old tugboat, a compact but incredibly complete structure that feels like it could still chug along if someone fired up the engines. We love exploring her bridge, still mostly intact. You can push your head through what was once a window, picturing the crew at work. The prop is still there, too, an imposing piece of machinery resting in the sand. Little crabs scuttle across the hull, and we’ve seen some decent-sized cod lurking in the shadows, looking for an easy meal. This isn’t a colourful reef, but the greys and greens of the Baltic have their own stark beauty, especially with the way the light filters down through the surface. It’s a site that rewards slow exploration, perfect for those who enjoy a contemplative dive rather than a high-speed chase after pelagics. Just remember, it’s an old wreck, so good buoyancy is key to avoid stirring up the fine silt inside.

Location: Baltic Coast, Sweden, Mediterranean & Europe
Coordinates: 59.285667, 17.613016
Type: wreck
Maximum Depth: 15m

Marine Protected Area: 2000634 Öbacken-Bränninge

Best Time to Dive in Baltic Coast

The warmest water temperatures in Baltic Coast occur in January, averaging 0.6°C. The coolest conditions are in December at 0.6°C.

Monthly Water Temperatures

January: 0.6°C (air: -0.4°C)
February: 0.6°C (air: -0.3°C)
March: 0.6°C (air: 1.7°C)
April: 0.6°C (air: 4.6°C)
May: 0.6°C (air: 10.5°C)
June: 0.6°C (air: 17.2°C)
July: 0.6°C (air: 17.8°C)
August: 0.6°C (air: 17.3°C)
September: 0.6°C (air: 13.2°C)
October: 0.6°C (air: 8.5°C)
November: 0.6°C (air: 3.8°C)
December: 0.6°C (air: -0.5°C)

Nearest Dive Centres to P. MARJAANA

Marine Life in Baltic Coast

Home to 59 recorded species including 31 reef fish, 9 seagrass & algae, 5 sea snails & nudibranchs, 4 other, 3 whales & dolphins, 3 sharks & rays.

Notable Species

Blue mussel (Mytilus edulis) - Clams & Mussels
Protestant (Clupea harengus) - Reef Fish
bladder wrack (Fucus vesiculosus) - Seagrass & Algae
New Zealand Mudsnail (Potamopyrgus antipodarum) - Sea Snails & Nudibranchs
Fluke (Platichthys flesus) - Reef Fish
Ruffe (Gymnocephalus cernua) - Reef Fish
Atlantic cod (Gadus morhua) - Reef Fish
sprat (Sprattus sprattus) - Reef Fish
bull rout (Myoxocephalus scorpius) - Reef Fish
Sea gooseberry (Pleurobrachia pileus)
pike (Esox lucius) - Reef Fish
common jellyfish (Aurelia aurita) - Jellyfish
Spawn (Gasterosteus aculeatus) - Reef Fish
burbot (Lota lota) - Reef Fish
Sea Trout (Salmo trutta) - Reef Fish
black goby (Gobius niger) - Reef Fish
salmon (Salmo salar) - Reef Fish
lumpsucker (Cyclopterus lumpus) - Reef Fish
eel (Anguilla anguilla) - Reef Fish
eelgrass (Zostera marina) - Seagrass & Algae

Recommended Packing List for P. MARJAANA

Based on average water temperature of 0.6°C.

Drysuit - water at 1°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