KOSAK
Protected Area
2000804 Vinga-skärgården
Why dive here
With 121+ marine species recorded in the area - including dolphins, dwarf minke whales, humpback whales, orcas and seals & sea lions - KOSAK offers some of West Coast (Gothenburg)'s richest wreck diving. Water ranges 3-18°C, warmest July, August, September.
The Kosak, a fishing vessel, sits upright at a modest 11 metres, making it a very accessible wreck for newer divers or those looking for a longer bottom time. We found her surprisingly intact, despite the "dangerous wreck" classification, with parts of the superstructure still recognisable. Shoals of small fish dart in and out of the wheelhouse, and we've spotted a few inquisitive crabs peeking from the holds. It’s not a massive wreck, but the shallow depth means you can really take your time exploring the deck and thinking about her working life before she ended up here.
Typical KOSAK Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Cold water this month (avg 13°C). Drysuit or thick wetsuit (7mm+) recommended.
Always perform a 3-minute safety stop at 5m before surfacing.
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Conditions
Ocean conditions, forecast and tides for KOSAK
KOSAK Ocean Conditions
Monthly averages for KOSAK, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (57.57, 11.03) (3km away)
October Averages
Sea Temperature
13°C
56°F · Range: 10.6–15.8°C
Air Temperature
10°C
50°F
Wind Speed
6.56 m/s
12.8 knots
Atmospheric Pressure
1010.2 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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