The castle walls were originally built by the Greeks in the 7th century BC and later expanded by Byzantine and Seljuk rulers.
The structure occupies a unique position on the narrowest point of the Sinop peninsula, serving as a natural defense barrier.
The walls reach heights of up to 25 meters and widths of up to 3 meters in certain sections.
The castle was used as a prison for political dissidents, writers, and journalists for over a century until 1999.
The site includes remnants of the 'Inner Castle' which functioned as a citadel within the larger fortification walls.
Sinop Castle is a historic fortification built on a peninsula in the Black Sea, known for its strategic military role throughout the Byzantine, Seljuk, and Ottoman periods. The structure features extensive stone walls that encircle the historic city center, integrated with the famous Sinop Historical Prison. Visitors can access the ramparts, which provide a panoramic view of the Black Sea and the surrounding harbor. The castle walls are constructed primarily of large cut stones and rubble, reflecting centuries of modifications and repairs. It serves as a physical divider between the old town and the modern commercial district. The site is currently maintained as a public historical monument with controlled access to specific defensive sections.
The highest point of the northern wall ramparts offering a 360-degree view of the Black Sea and the city harbor.
Wear comfortable, non-slip footwear to navigate the uneven stone stairs and steep inclines of the wall ramparts.
Allocate extra time to explore the adjacent historic prison museum located within the castle grounds.
Check local weather forecasts, as the sea breeze on the castle terrace can be significantly colder and stronger than in the city center.
Do not attempt to climb sections of the wall marked with restricted access signage or fencing for safety reasons.
