Bourtzi Castle | The Fortress Floating at the Harbor Entrance

As you stroll along the waterfront of Nafplio, Bourtzi is the first sight that captivates you: a small, stone castle floating serenely in the middle of the sea, embracing the bay. The boat ride across is short and experiential: as you approach, its octagonal shape and tall towers reveal its imposing character. Once you step onto the islet of Agioi Theodoroi where it is built, the view towards the old city of Nafplio and the Palamidi Fortress from this maritime perspective is stunning. Bourtzi is not just a fortress; it is the timeless guardian of Greece’s first capital.

Story Behind It

Bourtzi, a Turkish word meaning “island-fortress,” was built by the Venetians in 1473, following the retreat of Mahmud Pasha, based on the designs of the Italian architect Antonio Gambello. Its initial name was “Castello dello Soglio” (Castle of the Throne/Rock).

The Harbor Chain: Its strategic location was pivotal. The Venetians used to stretch a mobile chain (cadena) from the bastion of Acronafplia, known as the “Five Brothers,” to Bourtzi, thereby closing the harbor entrance to protect the city from enemies and pirates.
Multiple Uses: Over the centuries, Bourtzi served not only as a fortress but also as the first prison for Theodoros Kolokotronis, a hero of the Greek Revolution. Later, during the 19th century, it became the secluded residence of the executioners for the Palamidi prisoners (as the residents of Nafplio did not want them as neighbors).
The Romantic Era: In more modern times, from the 1930s until the 1970s, it operated as a luxury hotel and restaurant, hosting important figures. Today, after extensive restoration work completed around 2021, it functions as a visitable cultural monument and hosts exhibitions.

Why We Love It

We love Bourtzi because it is the absolute symbol of Nafplio, offering a unique sense of isolation and mystery despite its proximity to the city. Its beauty lies not only in its Renaissance architecture but also in its contradictory uses—from a dreadful defense outpost and executioners’ residence to a luxury hotel. The fact that it stands alone in the sea creates a magical visual from the coast, especially when it is illuminated at night. Finally, the experience of the short boat ride to access it is an integral part of its charm.

Fresh Tips

Access by Boat: Access is only possible by boat departing regularly from the port of Nafplio (opposite Filellinon Square). The journey takes just about 10 minutes.
Time to Visit: Choose to visit the fortress one hour before sunset. You will get the best light for photographs of both Bourtzi and the city of Nafplio from the castle walls.
View towards Palamidi: From the ramparts of Bourtzi, the view towards Palamidi (Nafplio’s other great castle) is unique and offers a complete picture of the city’s defensive strategy.
Accessibility: Following the recent renovation, the fortress now features an elevator for access to the main level, making it accessible to people with mobility issues.