Continent

•  Europe (1)

Land

•  Denmark (1)
•  Germany (4)
•  Netherlands (5)

Seas

•  Adriatic Sea (16)
•  Baltic Sea (40)
•  Black Sea (4)
•  Caribbean Sea (65)
•  Gulf of Bothnia (9)
•  Gulf of Finland (8)
•  IJsselmeer (3)
•  Indian Ocean (6)
•  Irish Sea (14)
•  Mediterranean Sea (87)
•  N-Atl. Ocean (77)
•  North Sea (117)
•  Pacific Ocean (12)
•  Red Sea (3)
•  S.-Atl. Ocean (22)
•  Wadden Sea (10)