The lighthouse's story begins earlier than 1857. Historical documents record that the cape — then called Kalamış Cape — caused regular maritime disasters. In 1562, Sultan Suleiman the Magnificent issued a decree ordering a light established on the rocks there to warn passing ships. Whatever was built in response to that decree did not survive to the present structure, but the sultan's concern speaks to how dangerous this headland was. The cape juts into the approaches to the Bosphorus at a point where currents converge and navigational margins narrow. Sailors who misjudged the turn in poor visibility or heavy weather paid with their ships. When the present lighthouse was built in 1857 — during the late Ottoman period, when Western engineering and Ottoman patronage were frequently combined on infrastructure projects along the straits — it replaced improvised solutions with something permanent.

The lighthouse itself is 25 meters tall, cylindrical, painted white, with two galleries encircling the tower at different heights. Attached to it is a one-story masonry keeper's house — solid, practical, built to last in the salt air of the Marmara shore. The light was originally fueled by kerosene, then converted to acetylene gas using the Dalén system — an ingenious automatic mechanism that allowed unattended operation — and now runs on electricity. The current lantern has a 1,000-watt light source projecting through a catadioptric lens system with a focal length of 500 millimeters, producing two white flashes in a twelve-second cycle, each flash lasting one and a half seconds. In fog, the foghorn sounds every sixty seconds. The lighthouse is registered in Turkey under the code TUR-021, with the radio call sign TC2FLH, operated by the Coastal Safety Authority of the Ministry of Transport.

The lighthouse stands in a public park about 1.5 kilometers south of Kadıköy, the lively Asian district known for its markets, cafes, and ferry connections to the European side. The park draws families on weekends, joggers in the early morning, and people who simply want to sit with a view of the Marmara. The lighthouse grounds are protected as a national heritage site: the tower is closed to the public, but the keeper's house and the surrounding park are open. The sea stretches south toward the Princes' Islands, which sit like smudges on the Marmara horizon on clear days. To the north, across the water, the minarets and towers of historic Istanbul rise on the European hills. The lighthouse occupies a quietly spectacular position — not a dramatic cliff, but a low cape where the city meets the open sea.

Any conversation about Fenerbahçe eventually turns to the football club — one of the oldest and most supported in Turkey, founded in 1907 in the same neighborhood. The club's name is simply the neighborhood's name, derived from the lighthouse. The yellow-and-navy colors of Fenerbahçe SK are recognizable across Turkey and in Turkish diaspora communities worldwide. The stadium is a few kilometers from the lighthouse, but the connection is onomastic rather than geographical: the lighthouse named the garden, the garden named the quarter, the quarter named the club. Whether supporters appreciate the maritime origins of their club's identity is another question. The lighthouse simply continues its work — flashing twice every twelve seconds, indifferent to the football.