Koster Islands & Kosterhavet · Sweden · Reef
Östra Långholmen
Ballan and grass wrasse in the algae belt
Östra Långholmen is a very easy natural dive near Tjärnö with some cliffs on one side, an algae belt and a muddy bottom. Water exchange is poor, so the life is mostly algae and mud-bottom animals, and the dive stays within 14 m.
Also known as Östra långholmen.
Where it is and how deep
No published position for this site — the map shows Koster Islands & Kosterhavet and its other sites; operators know the mooring.
The dive
Some cliffs line one side, with a little dead man's fingers on the rock. Ballan wrasse and grass wrasse hold in the algae belt, while the muddy bottom carries edible crabs and the other mud-dwelling animals typical of poorly flushed water.
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.
Sources
- Östra Långholmen dykplats | dykarna.nu — dykarna.nu
More dive sites in Koster Islands & Kosterhavet
Sea hares and nudibranchs in plenty in early spring
Sand slope
A sound between two islets that works well in hard wind
Wall
Sand giving way to a steep rock face, with a boulder field at its foot
Overhangs, some deep enough to border on caves
Similar dives elsewhere
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Rock fissures near the end of the Tjørnuvík jetty
Reef
Axelsro
Gotland & Fårö · Sweden
The easy-to-reach Visby site of small passages and stone atolls
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