Gulf of Koper towns of Koper, Izola and Piran (the northern shore), along with the villages of Ankaran, Bertoki, Jagodje, Dobrava, Strunjan and Fiesa, are located by the gulf. Gulf of Koper The Gulf of Koper or Koper Bay (, , ) is located in the northern part of the Adriatic Sea, and is a part of the Gulf of Trieste. The gulf, named after the city of Koper, is part of the Slovene Riviera and is entirely located in Slovenian territory. Crossed by the river Rižana, it is 18 km² large and spans from Debeli Rtič, next to the borders with the
Gulf of Bothnia of Bothnia into a southern gulf and northern lake across the Norra Kvarken area in about 2,000 years. Some historians suggest that the adventurer Ottar was referring to the Gulf of Bothnia when he spoke of the "Kven Sea" in the 9th century. It is also possible that Claudius Clavus's usage of the term "Mare Gotticus" in the 15th century refers to the Gulf of Bothnia. The land surrounding the Gulf of Bothnia is heavily forested. Trees are logged, then transported to the coast for milling. The gulf is also important for oil transport to the coastal cities and ore