The name 'Bourtzi' is derived from the Arabic word 'burj', meaning tower or fortress.
During the Greek War of Independence, the fortress served as a seat for the Greek government for a brief period.
In the mid-20th century, the fortress was converted into a hotel and restaurant, operating as such until the 1970s.
The islet was once home to a small church dedicated to Saint Theodore, which gave the rock its original name.
The structure is designed to fit the irregular shape of the small rocky islet it occupies, making it a unique example of defensive architecture adapted to limited space.
Bourtzi is a Venetian-era sea fortress located on the islet of Agioi Theodoroi in the middle of the Argolic Gulf. Originally constructed in 1473 by the architect Antonio Gambello to defend the Nafplio harbor, it is accessible only by boat. Its strategic position allowed it to function as a chain-linked sea defense, physically blocking the harbor entrance with a heavy iron chain extending to the Acronauplia fortress. Throughout its history, it has served as a prison, an executioner's residence, and a luxury hotel. The current stone structure reflects a mix of Venetian fortifications and subsequent structural modifications. It stands as the most photographed landmark of the Argolis region due to its isolation on the water.
The view of the fortress from the Nafplio promenade at sunset provides the best lighting for the stone facade.
Bring a hat and sunscreen, as there is almost no shade on the island.
Wear comfortable, non-slip shoes, as the fortress stone surfaces can be uneven.
Check local weather forecasts for wind conditions, as boat crossings can be suspended during high seas.
Do not attempt to swim to the fortress; boat operators provide the only authorized and safe transit.
Operations depend heavily on weather conditions; the site may be closed during periods of high wind or sea storms.
Respect the historic masonry and restricted zones; do not climb on non-designated areas.