Koster Islands & Kosterhavet · Sweden · Sand slope · Reef
Krugglö
A sound between two islets that works well in hard wind
Krugglö is a pair of islets near Strömstad split by a narrow sound. The dive drops into the sound and heads out over stone and then sand toward the mainland. It is not one of the area's best dives, but it works well in hard wind.
Also known as Krugglö, Strömstad.
Where it is and how deep
58.8897° N, 11.0940° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.
The dive
Divers descend inside the sound and swim out toward the mainland. The floor of the sound is a little stony, then gives way to sand, and the bottom settles at about 18-19 m. Dead man's fingers, wrasse, crabs and lobster are the usual sightings along the way.
Circling the island back to the sound's mouth on the fjord side is possible, but the water there turns shallow and the last stretch means crawling back over stones.
Marine life and season
- Macro critters
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Good | Good | Good | Fair | Fair | Fair | Good | Good | Good | Good | Good | Good |
Season follows Koster Islands & Kosterhavet: Boats run all year and no month stands out; spring and early summer bring brown, low-salinity surface water.
Know before you go
- The way round the island to the mouth of the sound gets shallow and ends in a scramble over stones.
Questions divers ask
Can Krugglö be dived in strong wind?+
Yes. The site works well in hard wind, though it is not counted among the area's best dives.
Sources
- Krugglö, Strömstad dykplats | dykarna.nu — dykarna.nu
More dive sites in Koster Islands & Kosterhavet
Sea hares and nudibranchs in plenty in early spring
Wall
Sand giving way to a steep rock face, with a boulder field at its foot
Reef
Ballan and grass wrasse in the algae belt
Overhangs, some deep enough to border on caves
Similar dives elsewhere
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Sand flats east of Herrvik crowded with flounder and turbot
Hundreds of garden eels standing out of white sand at 20 m
Garden eels standing in the sand a few fin-kicks from the entry