Twenty-five centuries ago, a man lived here in a jar and walked about in broad daylight with a lantern, saying he was looking for an honest human being. Diogenes the Cynic, Sinop's most famous son, now welcomes travellers in the form of a statue standing in the heart of the shopping streets, lantern in hand. His presence sets the tone: this peninsula on the Black Sea, at the northernmost point of Turkey, carries a rich history beneath its appearance of a peaceful port town.

Landing close to the centre

The quay is a short distance from the heart of town, and almost everything can be reached on foot. The first few minutes are enough to grasp the atmosphere: fishing boats moored in tight rows, nets spread out on the quays, restaurants grilling the morning's catch and, in the background, ramparts with sections dating back nearly 2,500 years. Founded in the 7th century BCE by Greek colonists from Miletus, the city owes its name to Sinope, an Amazon queen of mythology.

The fortress turned prison, then museum

The most striking attraction of the port call occupies the fortified enclosure itself. A shipyard in the Seljuk era, the site was converted into a prison in 1887 and remained one until 1999. Several Turkish writers and intellectuals were held within its high, wave-battered walls, and their accounts made this jail a place apart in the country's memory. Now a museum, the complex can be explored freely: silent courtyards, dormitories with barred windows, thick walls where the sea echoes. The visit is moving, and that's precisely what makes it so valuable.

Strolling between ramparts and wooden houses

Around the fortress, the lanes mix wooden houses, old mosques and artisans' shops. You follow the wall section by section, climb the accessible portions to look out over both shores of the peninsula, then head back down to the market, where hazelnuts, dried fish and local sweets are piled high. Residents like to point out that their town regularly ranks among the happiest in Turkey, and the relaxed atmosphere of the terraces offers convincing evidence. The tea gardens facing the waves invite a break: you watch the cargo ships passing offshore, tulip-shaped glass in hand, while the gulls fight the market cats for scraps. Black Sea cuisine dominates the menu: fried anchovies in season, pides fresh from the oven and tea served nonstop.

Nature at the peninsula's doorstep

Those who want to venture beyond the centre head for Hamsilos Bay, a narrow, wooded inlet that locals compare to a fjord. Its waters stay calm even when the Black Sea is rough, and the trails along the shore lend themselves to a peaceful walk among the pines. The area is reached by taxi, a few kilometres from the quays, which is compatible with the length of a port call, provided you arrange the return trip with the driver.

Practical pointers

• Old core, ramparts and prison museum accessible on foot from the quay.
• Hamsilos Bay a few kilometres away, by taxi or organized excursion.
• Currency: Turkish lira; local currency remains preferable to foreign currencies.
• Language: Turkish; English is limited outside tourist sites.

Heading back to the gangway, you think again of Diogenes and his lantern. Sinop is anything but a flashy port call: instead, it offers a frank encounter with the Black Sea, its fishermen, its old stones and its difficult memories. Those who come ashore with curiosity return on board feeling they've touched a Turkey that few cruise passengers know.