Åland Islands
Bomarsund Fortress
About this Dive Site
Description
Journey back in time at Bomarsund Fortress, where you can explore the submerged remnants of a once-mighty stronghold destroyed during the Crimean War. This historical dive offers a fascinating glimpse into the past, with intriguing underwater structures waiting to be discovered.
Best Time to Dive
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2°C | 1°C | 3°C | 5°C | 9°C | 14°C | 17°C | 18°C | 16°C | 12°C | 8°C | 4°C |
Peak Season
June, July, August, September
Jan
Ice diving possible in sheltered areas
Feb
Ice diving possible in sheltered areas
Mar
Ice breaking up, potential for early season dives
Apr
Spring thaw, increasing marine life activity
More monthly highlights
May
Seals often seen, kelp forests starting to flourish
Jun
Good visibility, abundant fish life, potential for porpoise sightings
Jul
Peak summer diving, warm water, rich biodiversity
Aug
Excellent conditions, still warm, good chance of seeing various fish species
Sep
Autumn colors underwater, good visibility, seals
Oct
Wreck diving season, cooler water, good visibility
Nov
Late season diving, colder, but still potential for interesting finds
Dec
Ice formation likely, limited diving opportunities
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