The castle was built in just ten months in 1684 by the Ottoman Empire to secure the vital Euripus Strait.
It replaced an earlier, less effective fortress, utilizing a design specifically intended to withstand artillery fire.
The castle's name, Karababa, originates from the tomb of a local Turkish leader named Baba, which was historically located near the site.
It remained a functional military position until the end of the Greek War of Independence in the 19th century.
The interior contains the church of Profitis Ilias, which predates the castle and was integrated into the defensive structure.
The fortification's walls are designed with specialized slots for light artillery and musketry aimed at the sea below.
Archaeological excavations at the site have revealed layers indicating habitation dating back to the classical period.
Karababa Castle is a 17th-century fortress situated on the hill of Fourka, overlooking the city of Chalcis and the Euripus Strait. Constructed by the Ottomans in 1684, the fortification was designed to protect Chalcis from Venetian naval incursions. The site features a well-preserved heptagonal bastion and the small church of Profitis Ilias, located within the castle walls. Its strategic position offers an unobstructed vantage point over the narrow strait separating Euboea from the Greek mainland. The structure combines Ottoman architecture with elements of Venetian defensive design, reflecting its turbulent military history. Visitors can walk along the perimeter walls to observe the layout of the complex and the surrounding urban geography.
From the western ramparts looking down toward the Euripus Strait and the bridge connecting Euboea to the mainland.
Wear sturdy walking shoes as the ground within the castle grounds is uneven and rocky.
Bring water, as there are limited facilities on-site to purchase refreshments.
Visit during clear weather to maximize visibility of the Euripus Strait and the mainland coastline.
Attempting to climb the outer walls, as many sections are unstable and restricted for safety.
Closed on Tuesdays.
Respect the religious site of the church of Profitis Ilias by maintaining a quiet demeanor.
