Mavi Koy
Island
Gölyazı Adası
Gölyazı Adası is one of the OpenStreetMap island 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
Gölyazı Adası 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.