Travel to Montenegro
Fortresses of Montenegro: from the walls of Kotor to Lake Skadar
Culture & History

Venetian walls, Ottoman towers, Austro-Hungarian forts and medieval strongholds above the lake, region by region

Fortresses of MontenegroFrom the walls of Kotor to Lake Skadar

In a small area, Montenegro was held in turn by the Illyrians, Byzantium, Venice, the Ottoman Empire, Austria and the Montenegrin state, and all of them built fortifications. The best known are the walls of Kotor with St John's Fortress, a UNESCO World Heritage Site. Herceg Novi has Kanli Kula, Forte Mare and Španjola, and the Austro-Hungarian Mamula guards the entrance to the bay. Above the sea stand the Citadel in Budva and Haj-Nehaj near Sutomore; on Lake Skadar there are Žabljak Crnojevića, Lesendro, Besac and Grmožur, and inland the Illyrian Medun and the Bedem fortress in Nikšić.

The walls of Kotor and St John's Fortress, Kanli Kula and Forte Mare in Herceg Novi, Mamula at the mouth of the bay, Haj-Nehaj, Žabljak Crnojevića and Medun: a guide to Montenegro's fortresses by region.

The Bay of Kotor: walls and towers above the water

The Bay of Kotor: walls and towers above the water

The hilltop above Kotor was already fortified in Illyrian times, and in the 6th century the Byzantine emperor Justinian rebuilt the fortress. The walls of Kotor took their present shape mostly under Venice, from 1420, with later additions by the Austrians. About four and a half kilometres long, they climb more than 260 metres to St John's Fortress. Kotor has been on the UNESCO World Heritage List since 1979, and since 2017 also as part of the Venetian Works of Defence.

Herceg Novi has three fortresses within a few hundred metres. Kanli Kula was built by the Turks in 1539; it served as a prison, which gave it its name, meaning bloody tower, and since 1966 it has been a summer stage with more than a thousand seats. Forte Mare guards the town from the sea; it was built between the 14th and 17th centuries and from 1952 also served as an open-air cinema. On Bajer hill above town stands Španjola, begun by the Turks and named after the Spaniards who rebuilt it during their brief rule of the town.

At the mouth of the bay, on the islet of Lastavica, is Mamula, a round fortress built in 1853 by the Austrian general Lazar Mamula together with the forts at Arza and Prevlaka. In the Second World War Italian forces used it as a concentration camp from 1942. Today the island is a hotel resort.

The coast: from Budva to Sutomore

The coast: from Budva to Sutomore

The Citadel at the southern end of Budva's Old Town is first mentioned in 1425, and the town walls begin and end at it. Above Brajići, on the old Budva–Cetinje road, Austria built the Kosmač border fort in the mid-19th century. Near Sutomore, on a rock 231 metres above the sea, stands Haj-Nehaj: a Venetian fortress first mentioned in 1542, taken by the Ottomans in 1571 and by the Montenegrins in 1877. At its top are the remains of the church of St Demetrius, which had two altars.

Did you know?

Prisoners in Kanli Kula carved drawings of ships into the walls. From the type of those ships, which sailed in the 16th and 17th centuries, historians worked out when the fortress became a prison.

Lake Skadar

Lake Skadar

Where the Morača flows into the lake stands Žabljak Crnojevića, a stronghold founded by the Vojislavljević princes of Zeta and the capital of the Crnojević dynasty in the 15th century. Near Vranjina is Lesendro, an 18th-century fort from the time of Petar II Petrović Njegoš; the Ottomans took it in 1843 and Montenegro regained it in 1878. Above Virpazar is Besac, built by the Turks in the late 15th century, and on an islet in the lake lies Grmožur, a former Turkish fort and prison known as Montenegro's Alcatraz, which you reach by boat.

Inland

Inland

About 13 kilometres north-east of Podgorica is Medun, the Illyrian town of Meteon from the 4th and 3rd centuries BC, with walls of huge stone blocks; the birth house of Marko Miljanov, now a museum, is also here. In Nikšić stands Bedem, the remains of a 4th-century Roman fort, 213 metres long, rebuilt by the Turks in the early 18th century. In summer its walls host the concerts of Bedem Fest.

Fortresses of Montenegro: from the walls of Kotor to Lake Skadar
Stone guardians of the coast and the lake

From the Illyrians to Austria-Hungary

Stone guardians of the coast and the lake

The walls of Kotor, the towers of Herceg Novi, Mamula at the mouth of the bay and medieval strongholds above Lake Skadar.

On the map

Places from this guide

St John's Fortress and the walls

Kotor

A climb along the walls from the Old Town to the fortress above 260 metres, with views over the whole bay.

Kanli Kula

Old Town, Herceg Novi

A fortress from 1539, once a prison, now a summer stage and viewpoint.

Forte Mare

Herceg Novi, above the promenade

The sea fortress with its Sea Gate, built between the 14th and 17th centuries and restored in 1833.

Španjola

Bajer hill, Herceg Novi

A fortress above town begun by the Turks and rebuilt by the Spaniards, looking out over the mouth of the bay.

Mamula

Lastavica islet, entrance to the bay

A round fortress from 1853; an Italian camp in the Second World War, now a hotel resort.

Arza Fortress

Cape Arza, Luštica, entrance to Boka

Austro-Hungarian fortification from the mid-19th century, along with Mamula and Oštro the first line of defense of the entrance to Boka. Private property, viewed from outside, a short walk from Arza and Mirište beaches.

The Citadel

Old Town, Budva

The town fortress, first mentioned in 1425, at the southern end of the Old Town.

Mogren Fortress

Spas Hill above Mogren Beach, Budva

Austrian fortress from 1860, guardian of Budva's western border. A ruin with walls and bunkers from World War II, free entry and a view from Jaz to Buljarica.

Kosmač Fortress

Brajići, above Budva

An Austrian border fort from the mid-19th century above the old Budva – Cetinje road.

Haj-Nehaj

Above Sutomore

A Venetian fortress at 231 metres, first mentioned in 1542, with the remains of the church of St Demetrius.

Žabljak Crnojevića

Mouth of the Morača, Lake Skadar

A Vojislavljević stronghold and the Crnojević capital in the 15th century.

Lesendro

Vranjina, Lake Skadar

An 18th-century fort from Njegoš's time, once on an island, now on a peninsula by the railway.

Besac

Above Virpazar

A fortress built by the Turks in the late 15th century, conserved in 2013.

Grmožur

Islet on Lake Skadar

A former Turkish fort and prison, Montenegro's Alcatraz; seen on boat trips.

Bedem

Nikšić

The remains of a 4th-century Roman fort, 213 metres long, home to the summer Bedem Fest.

Medun

13 km from Podgorica

The Illyrian town of Meteon and the birth house of Marko Miljanov, now a memorial museum.

Customs

Customs and good to know

Sturdy shoes

Fortress paths and steps are stone, uneven and slippery after rain. Wear shoes with a good grip.

Water and shade

There is almost no shade on Kotor's walls or at Haj-Nehaj. Bring water, especially in summer.

Early or late

In summer, start the climbs early in the morning or before sunset, when it is cooler and quieter.

Lake forts from the water

Grmožur and the shore of Žabljak Crnojevića are easiest to see on a boat trip on Lake Skadar, from Virpazar or Vranjina.

Summer evenings

Kanli Kula in Herceg Novi and Bedem in Nikšić host concerts and festivals in summer. Check the programme before you go.

FAQ

Frequently asked questions

From the Old Town to the fortress, more than 260 metres up, usually takes 45 to 60 minutes and well over a thousand steps. The path is steep and stony, so bring water and sturdy shoes.
In the 2026 season the adult ticket is 15 euros, paid at the entrance to the walls in the Old Town. Prices change, so check on site.
One of the oldest fortified sites is Medun, about 13 kilometres from Podgorica, the Illyrian town of Meteon from the 4th and 3rd centuries BC. The hilltop above Kotor was also fortified in Illyrian times.
Kanli Kula from 1539, now a summer stage, the sea fortress Forte Mare and Španjola on Bajer hill. Mamula, on the islet of Lastavica, guards the mouth of the bay.
The island is now a hotel resort, so access depends on its rules. The fortress is easy to see from a boat trip to the mouth of the bay.
Žabljak Crnojevića at the mouth of the Morača, Lesendro near Vranjina, Besac above Virpazar and Grmožur on an islet in the lake, best seen on a boat trip.