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Kotka
Finland
sea
4 Dive Sites
0 Dive Centers
Explore the maritime heritage of Kotka, a coastal city where the Kymi River meets the sea. Dive into a unique blend of saltwater and freshwater environments, discovering numerous historical wreck sites and diverse underwater topography.
Best Time to Dive
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1°C | 1°C | 4°C | 8°C | 14°C | 17°C | 18°C | 15°C | 11°C | 7°C | 3°C | |
Peak Season
June, July, August
Jan
Ice diving possible, but extremely challenging and requires specialized gear and experience.
Feb
Ice diving.
Mar
Ice breaking up, potential for early season ice diving.
Apr
Ice has melted, initial spring visibility can be poor due to sediment.
More monthly highlights
May
Marine life starting to become more active.
Jun
Good visibility, increasing marine activity.
Jul
Peak summer diving, good for exploring wrecks and reefs.
Aug
Warmest water temperatures, excellent visibility.
Sep
Autumn colors underwater, good visibility.
Oct
Seals can be more active.
Nov
Water temperatures dropping, visibility can be good before ice forms.
Dec
Risk of ice formation, limited diving opportunities.
Photo Gallery
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Tarmo Wreck
Explore the historic Tarmo Wreck, a remarkably preserved steam-powered icebreaker resting in the wat...
30m
2 species
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Kymi River
Discover the vibrant underwater world of the Kymi River, a popular Finnish dive site celebrated for...
20m
2 species
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Ruonala
Explore the underwater wonders of Ruonala near Kotka, a captivating dive site perfect for all skill...
25m
2 species
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Deep Kotka
Venture into the depths of Deep Kotka, a challenging dive site designed for experienced divers seeki...
40m
2 species
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