Mavi Koy
Island
Sedef Island
Sedef Adası
Sedef Island is one of the OpenStreetMap island records on the Black Sea coast. Mavi Koy shows this point for cultural and geographic discovery, not nautical navigation, depth, anchoring, or safety advice.
Audio note
Sedef Island is an open-data coastal point in Mavi Koy's Black Sea coast layer. The aim is not to draw a route; it is to hear coastal names, islands, beaches, capes, and sea-visible geography inside a safe cultural atlas.
Mavi Koy is for cultural and geographic discovery. It is not nautical navigation, depth, weather, anchoring, or safety guidance.