HARM - Baltic Coast
The HARM, a motor vessel built in 1955, lies at a manageable 22 metres in Lindalssundet, just outside Stockholm. She sank after a collision with the MV Stavklint, and now rests upright, making for a straightforward exploration. We usually find decent visibility here, letting you appreciate the intact structure – the bridge section is particularly interesting, often hosting curious blennies and even small cod. Penetration is possible for experienced wreck divers, but even staying on the exterior offers plenty to see. It’s a solid Baltic wreck dive, good for those looking for a relatively accessible piece of history.
- Location
- Baltic Coast, Sweden, Mediterranean & Europe
- Coordinates
- 59.414555, 18.500523
- Type
- wreck
- Maximum Depth
- 22m
Marine Protected Area: SK 455-2007
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)
Nearby Dive Sites in Baltic Coast
- AID - 30m (wreck)
- Akula - 30m (wreck)
- Alfred - 12m (wreck)
- Altair - 25m (wreck)
- ANNA - 42m (wreck)
- Astrahan - 4m (wreck)
- Äventyrsgruvan
- BEATRIS - 31m (wreck)
- Belliver - 29m
- Björkviks brygga
- BRITA DAN - 10m (wreck)
- Caskelot/Nederland - 24m (wreck)
- DONNA - 20m (wreck)
- DORIS H - 11m (wreck)
- Dykhuset
Nearest Dive Centres to HARM
- Dykhuset AB
- Ecodive - PADI
- Seawolf Sukelluskeskus Oy - ["PADI"]
- Stockholms Dykcenter - SSI
- Turun Sukelluskeskus - SSI
- Västerorts Dyk & Kompressorer AB
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 HARM
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