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Fort St John

A key part of the city's old port defence system, this fort now hosts an Adriatic aquarium and maritime museum.

TravelCurious Tip

The fort is particularly impressive when lit up at night.

An integral part of Dubrovnik’s world-famous city walls, Fort St. John was the city harbour’s main defensive bastion. It is located on the western side of the port, and was designed to prevent enemy ships from accessing the city. The first fort was built here in the 1300s, but it was only in the 15th and 16th centuries that Fort St. John took on the dramatic semicircular proportions we can see today. Though its military days are long behind it, it still stands as an impressive monument to Dubrovnik’s turbulent history, and few who visit it come away unimpressed by its mighty stone battlements.


Defence in Chains

Today, Fort St. John is a perfect spot to take a break on your tour of the city walls. Leaning on the parapet in the sun, you get a fantastic panorama of the jetties over to your left and Lokrum island to your right. Directly across the harbour, nestled between a mass of red-roofed houses, is the 13th century St. Luke’s Tower, one of the city’s oldest preserved towers. In the days of naval defence, heavy boom chains were hung between St. Luke’s and Fort St. John to prevent enemy ships from entering the harbour.

On the fort’s ground floor, you will find an aquarium dedicated to the sealife of the Adriatic, while on the upper levels there is a well-curated maritime museum covering Dubrovnik’s naval period from the republican era to the Second World War.


Nearby Attractions

See all attractions in Dubrovnik
Dubrovnik Cathedral
This Baroque Roman Catholic cathedral was rebuilt after the 1667 earthquake on a site of worship that dates back to the 7th century.
Walls of Dubrovnik
The imposing defensive walls of Dubrovnik guarded the freedom of a sophisticated republic for five centuries.
Rector's Palace
This secular palace is a harmonious combination of Gothic, Baroque and Renaissance architecture.
Dubrovnik Cruise Port
A port renowned for its fascinating history, crystal clear water and astounding superyachts.
Orlando Column
A 600-year-old column carved in honour of the legendary knight Orlando, who saved Dubrovnik from a siege by Arab pirates in the 8th century.
City Bell Tower
A beautiful landmark of the Old Town, with a bell struck by two bronze men.

Related Tours

Game of Thrones King's Landing (SG)
  • Many scenes from the iconic TV show Game of Thrones were filmed in the beautiful Croatian city of Dubrovnik.
  • Not only will you uncover the beauty of the depth of Dubrovnik you will discover all of the most popular locations that were used in the filming process. An absolute must for all fans of the show!

Your friendly and personal tour guide will walk you through the streets of the magnificent King's Landing, the very capital of Westeros, and you will be privileged to visit the sites where some of the most popular scenes took places: Battle of the Blackwater Bay, attack on King Joffrey and royal family by angry citizens and the famous Queen Cersei's walk of shame.

Take a look from the fort's impressive vantage point at the fictional Blackwater Bay and imagine the bloody Battle of Blackwater taking place outside of Dubrovnik's old walls.

Would you like to stand in the exact same spot where gruesome King Joffrey was killed at his own wedding?

Littlefinger, Sansa, Tyrion, Varys are just some of the fascinating characters that have walked the beautiful streets of this unique city - and now you can experience it, too.
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