Gulf of Koper
| Gulf of Koper | |
|---|---|
| Koper Bay | |
| Koprski zaliv (Slovene) | |
| Debeli Rtič, the northernmost point of the gulf, with the Triglav in background | |
| Location | Europe | 
| Coordinates | 45°33′N 13°44′E / 45.550°N 13.733°E | 
| Basin countries | Slovenia | 
| Surface area | 18 km2 (6.9 sq mi) | 
| Settlements | Ankaran, Koper, Izola, Piran | 
The Gulf of Koper or Koper Bay (Slovene: Koprski zaliv, Croatian: Koprski zaljev, Italian: Golfo di Capodistria) is located in the northern part of the Adriatic Sea, and is the northern part of the Gulf of Trieste. It comprises several minor bays: the Ankaran Bay (with the Valdoltra Bay), the Semedela Bay, the Viližan Bay, the Simon Bay, the Moon Bay, and the Strunjan Bay. It covers an area of 18 square kilometres (6.9 sq mi)- Since 1785, when the town of Koper was still on the island, the area of the bay has been reduced by about 4 km2 (1.5 sq mi) due to land reclamation.