Continent

•  Europe (3)

Land

•  Denmark (8)
•  Finland (8)
•  Germany (6)
•  Norway (2)
•  Poland, Baltic states (6)
•  Sweden (21)

Seas

•  Baltic Sea (30)
•  Gulf of Bothnia (8)
•  Gulf of Finland (6)
•  N-Atl. Ocean (1)
•  North Sea (19)