Mavi Koy
Bay
Gemlik Gulf
Gemlik Körfezi
Gemlik Gulf is one of the OpenStreetMap bay records on the Istanbul strait and lighthouse line. Mavi Koy shows this point for cultural and geographic discovery, not nautical navigation, depth, anchoring, or safety advice.
Audio note
Gemlik Gulf is an open-data coastal point in Mavi Koy's Istanbul strait and lighthouse line 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.