Things to Do in Sinop: The Castle, the Old Prison and Hamsilos

--- title: "Sinop travel guide: the prison inside the walls, the Black Sea's best harbour and the top of Turkey" description: "An honest guide to Sinop, Turkey: the fortress prison that ran until 1997 and held Sabahattin Ali, the Seljuk mosque and madrasa, the Balatlar excavation, the Hamsilos inlet that is not a fjord, İnceburun, Sarıkum, the Erfelek waterfalls, Gerze and Boyabat, when to go and what to eat." city: "Sinop" lang: "en" ---

Sinop: built for the harbour, still standing because of the walls

Start with the map. Sinop sits on a peninsula that reaches north into the Black Sea and hooks around, and that hook shelters the water behind it from the weather coming off the open sea. Nothing else on Turkey's Black Sea coast does this. For centuries ships along this shore looked for somewhere to hide, and this was the only decent natural harbour they could find. That single fact explains the rest of the town's history. It explains why Milesian colonists founded it in the 8th century BC, why the Pontic kings made it a capital, and why Byzantium, the Seljuks and the Ottomans each took a turn at fortifying it. A good harbour was useful to everyone, so everyone had to defend it.

Then those same walls found a second job. In 1887 a prison was built inside the fortress, and it ran until 1997. Thick stone, a rock in the sea, water on every side that mattered: the place was considered impossible to escape. Among the people held there were writers. Sabahattin Ali was imprisoned here in 1932, and the poem he wrote inside, "Aldırma Gönül," was later set to music and became a song most Turks can sing. Refik Halit Karay was here in 1913. The journalist Zekeriya Sertel was held from 1925 to 1928. So was the novelist Kerim Korcan. What happened in Sinop, then, is a loop: the town locked up its writers, the writers wrote about being locked up, and the story the town is known for today comes largely out of those pages. The fortress is not just a museum. It is a building famous for what was written inside it.

Who is it for? People who like reading history as cause and effect rather than as a list of buildings. People who would rather not queue. People who have already done the eastern Black Sea, liked it, and want something different. The most common mistake is coming to Sinop for the beaches and leaving the prison off the plan. The second most common is importing your expectations from Rize or Trabzon. There are no high pastures here, none of those steep green walls, no tea terraces emerging from fog. Sinop is lower, more wooded, quieter and drier. Arrive looking for the eastern Black Sea and you will find it lacking. Arrive looking for Sinop and it is more than full.

Quick answer

Sinop works when you give the walkable centre two days and set aside another for the north and the west.

• The route: castle and prison first, then the mosque, madrasa, museum and Balatlar in the centre, then Hamsilos and İnceburun to the north, then Erfelek and Gerze.
• Prison first, beaches after. Do it the other way around and you run out of time.
• Best time: late June to September to swim, May and September to look at things.
• It rains in every season. Plan for that rather than cancelling.

1. Sinop Kalesi (the fortress and city walls)

The wall line cuts across the neck where the peninsula joins the mainland. Sources trace the first walls to the 7th century BC. What you see now is Roman, Byzantine and Seljuk repair work stacked on top of each other, with inscriptions dated 1215, 1218, 1434 and 1451. The numbers are impressive even on paper: roughly 2,050 metres around, up to 25 metres high, 3 metres thick.

The way to understand the walls is not to study the masonry but to look at where they are. Sinop is a peninsula, and the neck connecting it to land is narrow. Close that neck and the entire town becomes defensible. That is the whole idea. The fortress went here for geometry, not for the view.

Some stretches can be climbed, and from the top you get both the harbour and the town. The surface is uneven in places and you should not expect railings along the edges. The site entered UNESCO's Tentative World Heritage List in 2013. Which sections are open, and on what terms, can change. Verify officially before you go.

2. Sinop Fortress Prison (Tarihî Sinop Cezaevi)

Do not come to Sinop and skip this. A prison built inside the fortress in 1887, closed on 6 December 1997, and handed to the Ministry of Culture in 1999. It is a museum now.

What makes it matter is not the architecture but the roll of people held here. Sabahattin Ali in 1932. Refik Halit Karay in 1913. Zekeriya Sertel from 1925 to 1928. Kerim Korcan too. A section of modern Turkish literature was either written inside these walls or written about them afterwards. Walking the cell blocks, you are standing in the physical version of something you have read, which very few museums can offer.

The place is hard going. Stone wards, cramped yards, high walls and the sound of the sea behind them. That last detail is the point: escape was considered impossible because outside was water. You will sometimes see it called the Alcatraz of Anatolia, which oversells it but gets the idea across.

Give it more than an hour. It can be heavy for small children. Check opening hours and entry terms officially.

3. The Diogenes statue

Diogenes of Sinope was born here, around 412 or 404 BC. He is the best known of the Cynics, and most of what survives about him has hardened into anecdote: living in a jar, walking in daylight with a lamp looking for an honest man, telling Alexander to stop blocking his sun. The reason he left is less often repeated. He was accused, along with his father, of debasing the coinage, and exiled for it.

The statue went up in 2006. Marble, about five and a half metres, showing him exactly as the stories do, lamp in hand and dog at his side. A team of twenty five led by Turan Baş of Ondokuz Mayıs University carved it over six months.

It is a few minutes, not a stop. But it sits right by the prison, so it lands in your walking route on its own. There is also an accident of placement worth enjoying. A man exiled for rejecting property and respectability now stands in marble outside the building his city used to lock people in.

4. Kumkapı beach

A short strip of sand just west of the prison, at the foot of the walls. What recommends it is not the scenery but the location: it is inside town, it is walkable, and you reach it about five minutes after leaving the fortress.

It also tells you something general about Sinop's beaches. This is not the Aegean. Darker sand, cooler water, more swell. Swimming on the Black Sea is always a judgement call: fine if the weather is good and the sea is calm, not worth forcing otherwise.

The best use of Kumkapı is not to build a half day around it but to slot it into the middle of a day in town. Castle and prison in the morning, an hour here through the hot part of the afternoon, then the mosque and museum. It is on the peninsula's western side, so it holds the sun late.

Lifeguards, showers and shade are not guaranteed on any given day. If you swim, look at the current and the flag, and do not go out alone on an empty beach.

5. Alaaddin Camii and the Pervane (Alaiye) madrasa

A Seljuk pair in the middle of town. Wikidata dates the mosque to 1267, and it is the oldest working building in Sinop. Plain, heavy, undemonstrative. It is a good example of Seljuk stonework without the showpieces, so do not come looking for a facade on the scale of Konya. This is a port town's mosque.

Fifty metres north stands the Pervane madrasa, also called the Alaiye madrasa. Same period, and you can read the courtyard plan clearly. It has a story of its own: Sinop's museum collection was moved here in 1932 and stayed until the museum opened to the public in 1941. Museum-keeping in this town started in this building.

Treat the two as one stop, a minute apart. Half an hour is enough. The mosque is in active use, so time your visit around prayers and keep quiet inside. Whether the madrasa is open, and what is in it, varies. Verify before you go.

6. Sinop Archaeology Museum

Small, but one of the oldest museum efforts in Turkey. Collecting began in 1921. The collection moved into the Pervane madrasa in 1932 and the museum opened in 1941. The current two-storey building was finished in 1970 and reopened after a renovation in 2006.

Two things here are worth your attention. The first is the amphora hall. Sinop was a serious pottery producer through the Hellenistic, Roman and Byzantine periods, and its amphorae travelled all around the Black Sea. One room tells you what a port town made and what it shipped. The second is the icon hall, holding the Orthodox icons left from Byzantine Sinop in one place.

The garden is as good as the interior. The Serapeum, the remains of a temple to the Hellenistic-Egyptian god Serapis, is here, along with the Sultan Hatun tomb dated 1395, architectural fragments, gravestones and mosaics.

Allow ninety minutes. Come here before Balatlar and you will read that site better. Check entry terms officially.

7. Balatlar building complex

The least known and most interesting site in Sinop. It usually goes by Balatlar Kilisesi, Balatlar Church, but complex is the better word, because this is not one building. It is a sequence of uses piled onto the same walls.

The order runs like this. A Roman bath. Converted into a church under Byzantium, somewhere in the 6th or 7th century. Used as a grain store between the 11th and 13th centuries. Turned into a monastery under the Ottomans, with the ground around it eventually used for burials. Four jobs, one set of walls, and all four still legible.

Excavation began in 2010 and is directed by Gülgün Köroğlu of Mimar Sinan Fine Arts University. Finds include graves, Byzantine glazed ceramics, European pottery, and fresco fragments on the north and south walls showing Christ, Mary and the apostles.

This is not a finished museum. It is a working dig, so set your expectations: few signs, uneven ground, sections that may be closed. In exchange you get something rare in Turkey, which is archaeology in progress rather than archaeology tidied up.

8. Boztepe headland

The promontory east of town, at the tip of the peninsula, and the place that shows you Sinop from above. You can drive up, and there are viewpoints at the top.

The reason to come is not really the view. It is that the geography resolves in one glance. From up here you see how the peninsula curls like a hook and what it leaves behind it: sheltered water. Sinop's harbour is good because the land closes it off from the wind.

The water below you is also where the Ottoman fleet burned on 30 November 1853. The Russian admiral Nakhimov attacked the Ottoman ships at anchor with newly developed explosive shells. Russia lost no ships. Ottoman dead are put between three and five thousand. The British and French press called it the massacre of Sinope, opinion turned, and both countries entered the Crimean War in March 1854. It counts as the last battle of wooden sailing ships. What came after was the ironclad.

It is windy. Bring a layer more than you think.

9. Akliman bay

About 11 kilometres northwest of town, a wide bay where pine forest comes straight down to the sea. For people who live in Sinop this is the everyday escape: picnics, tea, a walk.

The character is nothing like the centre. In town it is stone, walls and history. Here it is forest and water, and the two are fifteen minutes apart. That proximity is one of Sinop's most practical advantages, because you can tour the prison in the morning and be under trees by the afternoon without covering any real distance.

Akliman also works as a gate. It is how you enter Hamsilos, and the road to İnceburun continues from here. If you are giving the north a day, the route starts here by default.

There is a small harbour, a lighthouse and a picnic area. It gets genuinely busy on summer weekends. Go midweek if you can. Take your rubbish out with you, since this sits right against a protected area.

10. Akliman beach

The sand on the south side, facing open sea. Unlike the sheltered inner part of Akliman, this takes swell, and the distinction is useful to know: the same name covers two different water conditions.

The beach is wide and long. It is one of the most used beaches in Sinop in summer, and being close to town it fills up in July and August. The sand is dark, the water is clear, and it is not at Aegean temperature.

The thing to watch is the current. On a beach facing open water, swell can mean rip currents, and the Black Sea is serious about this. Lifeguards are not on duty every day or all day. If the sea is up, stay out. Walking the shoreline is a perfectly good day too.

Shade is limited. Bring an umbrella and water. Driving is easiest, though parking takes a while at the height of summer.

11. Hamsilos inlet and nature park

The most photographed natural site in Sinop, and the most misdescribed. A narrow inlet running 300 to 400 metres inland from where the Deveci stream meets the sea. Forest on both banks, still water, the look of an enclosed channel.

Now the part that matters. This is commonly called Turkey's only fjord, and that is not right. A fjord is a valley carved by a glacier and later drowned by the sea. There was no glacier at Hamsilos. Here, sea levels rose after the last ice age and flooded an existing river valley, and the word for that is a ria. Turkish Wikipedia says so directly: this is a ria coast, and calling it a fjord is a common error. Do not be surprised to hear fjord anyway. The geology just does not support it.

None of which makes the place less worth seeing. Hamsilos Nature Park was designated in 2007, covers 67.9 hectares, and holds six endemic plants, among them a wild carnation and the Sinop chamomile.

The walk is short and easy. Just wear something that grips.

12. İnceburun and its lighthouse

The northernmost point of Anatolia, roughly 20 kilometres from central Sinop, reached by carrying on north from Akliman. There is a lighthouse at the tip.

The appeal here is the position rather than the beauty. This is the furthest north you can stand on land, and there is nothing in front of you but the Black Sea. Ukraine and Crimea are over there somewhere, and standing here is how you register how much water is in between. The light has a range of 18 nautical miles and is one of the main lights on this coast. For shipping, this is the northern corner of Turkey.

One thing to be clear about. The lighthouse is a working navigational light, not an observation tower. Do not plan on going in or up.

The road is narrow and the last part can be rough. In a low-clearance car in the rain you may struggle. The wind is constant and hard. There are few people, which is the good part. Put it in the same day as Akliman and Hamsilos.

13. Sarıkum lake and nature reserve

A shallow lagoon 21 kilometres west of town, lying parallel to the coast. Its formation is the interesting bit: this used to be a bay, and over time sand carried by the sea built a bar across the mouth and sealed it. The lake is a piece of sea that got cut off.

That history explains the water. Sarıkum is not fresh. It is brackish, notably salty and sodic. It counts among Turkey's nutrient-rich wetlands, and that richness feeds things: the lake is known for its mullet, with recorded specimens over 40 centimetres and above a kilo.

The reason to go is birds. The area holds nature reserve status and matters for waterfowl. It is busiest during migration and in winter. Go early in the morning, when the birds are active and the light is good.

Set your expectations correctly. This is a protected area, not a laid-out park. Trails and hides may be limited and some zones restricted. Bring binoculars. Verify access and visiting terms officially.

14. Tatlıca (Erfelek) waterfalls

The best inland stop in the province. Near Tatlıca village in Erfelek district, on the Karasu stream, 28 separate waterfalls of varying size. About 45 kilometres from the centre and 10 from Erfelek.

Do not expect any single fall to be big. The effect here is repetition. You climb the valley and the water keeps dropping, step after step. There are wooden stairs and platforms along the path, and the rock's own hollows serve as handholds. Going all the way up is a real walk. Seeing the first few falls and turning back is also a legitimate visit.

The area was declared a nature park in 2011 and covers roughly 720 hectares. Public access dates to 1997, when a road went in during dam construction. The water feeds the Erfelek dam.

The ground is wet and slippery, especially after rain. Proper soles are not optional, and sandals are a bad idea. Summer weekends are busy. There are tea stands along the return path and a cafe at the top.

15. Ayancık shore

A district town about 50 kilometres west of the centre, and its shoreline. The natural stop if you want to see Sinop's western arm.

Ayancık is a timber town and the past shows. The forest behind it is dense, the town itself is small. The shore is flat and long and gets used by locals in summer. Few crowds, but few facilities either. Do not arrive expecting a resort.

The real prize here is the drive. The coast road between Sinop and Ayancık runs between forest and sea, and the road is where you understand why this stretch of Black Sea counts as the quiet one. No cities, little building, coves and stream mouths in between.

Give it half a day and treat the road as the destination. You can combine it with Erfelek, though the day gets full. Both are west, but one is on the coast and one is inland.

16. Gerze shore

A district town southeast of the centre. Coastal, flat, quiet. It is the first substantial settlement after Sinop and it feels distinctly different from the city.

Gerze is known for its wooden houses. Traditional Black Sea timber buildings survive in the old fabric, some still standing well. There is a fishing harbour and a walking route along the shore. The thing to do is walk, sit, and watch the boats come back in the evening.

You do not come here to complete a list. Gerze is for seeing Sinop without the crowds, everyday Black Sea life at district scale. If you take photographs, the timber houses and the harbour are good material.

Half a day out from Sinop. There are buses, and driving is easy. If you are carrying on to Boyabat the road runs this way anyway, so combining them makes sense. The shore is fine for swimming, but the Black Sea rules still apply.

17. Boyabat castle

Inland Sinop. Far from the centre, roughly two hours, and a completely different geography. The sea ends and the Gökırmak valley begins.

The castle sits on the southern of two rocky hills above the valley and looks, from below, as though it grew out of the rock. Sources credit the Paphlagonians with building it around the 7th century BC. Late Roman, early Byzantine and Ottoman traces follow, and the Ottomans gave it most of its present shape. There is no inscription, so the construction year is unknown.

Beneath it lies an underground settlement, suspected to run under the town itself, carrying Roman and Byzantine traces. The castle operates as a museum today and belongs to the municipality of Boyabat.

Worth it? If you have more than three days in Sinop and you want to see the province's non-coastal face, yes. On a two-day trip, no. The road follows the valley and is interesting in itself. Check opening days and entry terms officially.

Getting there

Flying is fastest but limited. Sinop airport is close to town, with few flights, mostly to İstanbul and Ankara. The schedule shifts by season, so check ahead. The alternative is flying to Samsun and driving on. Samsun has considerably more flights and much better car hire.

Buses are the common option. There are regular services from İstanbul, Ankara and Samsun. From İstanbul the journey is long and an overnight bus makes sense. Via Ankara the distance is more reasonable. The bus station is close to the centre.

Driving gives you the most flexibility. You reach Sinop either along the Black Sea coast road or on the inland road via Kastamonu. The inland road is mountainous and winding, so check conditions in winter.

The centre is entirely walkable. Castle, prison, mosque, madrasa, museum, Balatlar and Kumkapı are all within walking distance. You do not need a car in town, and parking is a nuisance anyway.

You need a vehicle for these: Akliman, Hamsilos, İnceburun, Sarıkum, Erfelek, Ayancık, Gerze and Boyabat. Either hire a car or look into the district buses. The northern line, Akliman through İnceburun, is comfortable in a single day with a car.

When to go

The swimming season is short. Black Sea water warms late and cools early. If swimming is the point, July and August, with late June and early September at the margins. Outside that window the sea is cool and the weather is unreliable.

For sightseeing, May and September are better. Fewer people, sensible heat, and touring the castle and prison does not wear you down. The Erfelek waterfalls run harder in spring, when the snowmelt arrives.

It rains in every season, so make your peace with it. This coast gets rain year round and Sinop is no exception. Cancel because of rain and you simply do not go. The prison, the museum, Balatlar and the mosques are all fine wet. Waterfall paths and forest tracks are what turn slippery.

Winter is quiet. The town empties, the sea turns rough, some stops become unreachable. The walls and fortress without crowds are good for photographs. But the İnceburun road and the Erfelek path both get harder in winter, so verify conditions officially before setting out.

What to eat

Hamsi, Black Sea anchovy. The fish this coast is defined by, and its season is winter, roughly November to February. Fried is the standard, but there is also hamsi pilaf, a steamed version, and hamsi bread. If you come in summer, do not expect it fresh. It is not the season. If you see it on a midsummer menu, understand that it has been frozen, and ask.

Sinop mantı. The mantı here is not the small boiled Kayseri kind. In Sinop the parcels are bigger, usually baked, and served with broth and yoghurt. It will not be the dish you were expecting, and that is the reason to order it. The same word covers very different food across Turkey, and these two are the distance between the poles.

Nokul. A leavened pastry rolled into a spiral, said to go back to the Anatolian Seljuk period. Fillings run to poppy seed, walnut, cheese, tahini or minced meat, in both sweet and savoury versions. Sinop nokulu holds a geographical indication from the Turkish Patent and Trademark Office, so the local claim is registered rather than just asserted. Bakeries and patisseries have it.

We do not name restaurants. There are fish places at the harbour and in the centre. As a test, look for somewhere busy and local-looking that will tell you what is in season and what came in that day. Do not choose on the view.

FAQ

**How many days does Sinop need?** Two days covers the centre and the northern line: one for the castle, prison, mosque, madrasa, museum and Balatlar, one for Akliman, Hamsilos and İnceburun. Adding Erfelek and Ayancık takes a third day, and Gerze with Boyabat a fourth. In one day you see the centre only, and even that is rushed.

**Is the prison actually worth it, or is it a tourist thing?** Worth it, and it is the most important stop in town. This is not a reconstruction. It is a building that genuinely operated from 1887 to 1997. Sabahattin Ali, Refik Halit Karay, Zekeriya Sertel and Kerim Korcan were held here. It is the physical address of a chunk of Turkish literature, which is why coming to Sinop for the beaches and skipping it is the wrong trip.

**Is Hamsilos really a fjord?** No. A fjord forms when a glacier carves a valley and the sea later floods it, and Hamsilos has no glacial history. It is a ria: a stream valley drowned by rising sea level. The fjord label is very widespread locally and can even appear on signs, but it is not geologically correct. The place is still worth seeing. The name is just wrong.

**Can you swim in Sinop, and is the water cold?** You can, but the season is short. July and August are the safe months, with late June and early September borderline. The water is not at Aegean or Mediterranean temperature and never will be. The real issue is not temperature but current: beaches facing open sea can produce rip currents when there is swell. Lifeguards are not on every beach every day. If the sea is up, stay out.

**Can you visit Sinop without a car?** For the centre, yes, entirely on foot. Castle, prison, museum, mosque and Balatlar are all walkable. But Hamsilos, İnceburun, Sarıkum, Erfelek and Boyabat need a vehicle or a district bus. If you are only doing the centre, a car is dead weight. If you want the rest of the province, it is necessary.