Boztepe Peninsula

The midpoint of the peninsula is at about 42°01′30″N 35°11′00″E / 42.02500°N 35.18333°E / 42.02500; 35.18333 The link between the mainland (which itself is a bigger peninsula) to the west and Boztepe to the east is an isthmus of 1.5 kilometres (0.93 mi) length and only 300 metres (980 ft) width.

[2] The area of the peninsula is about 7 square kilometres (2.7 sq mi).

The bay to the south of the peninsula (called İçliman) is a natural harbor sheltered from most winds except for the south east wind.

More than half of the Sinop city, including the historical buildings, is either in the southwest part of the peninsula or on the isthmus.

At the easternmost end of the peninsula there is a lighthouse equipped with a foghorn.