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In the archipelagos of the northern Bay of Bothnia, remnants of rotten ice are still present in places. Along about 24Â°30â€™E there is drifting open ice and further south, along and just outside the coast down to Kala-joki, there is 10â€“40 cm thick, very close to open ice. The rest of the Baltic Sea is ice free.
Bundesamt fÃ¼r Seeschifffahrt und Hydrographie (BSH)