The site was an active military fortification from the Bronze Age through the Greek War of Independence in the 19th century.
The castle takes its name, Larisa, from the ancient name of the hill itself, not the city in northern Greece.
Archaeological excavations revealed structural elements dating back to the Mycenaean period within the lower layers of the foundation.
The central keep was extensively modified by Frankish Crusaders during the 13th century.
The Venetian occupation left behind prominent artillery bastions designed to defend against gunpowder weapons.
Hidden underground cisterns are still visible, which were essential for maintaining water supplies during long sieges.
The castle provided a key defensive position for the Greek forces during the 1821 revolution.
The Castle of Argos, known locally as Kastro Larisa, is a medieval fortress built atop the foundations of an ancient acropolis overlooking the city of Argos. The site features extensive fortifications from the Byzantine, Frankish, and Venetian periods, layered over ancient masonry. Visitors can observe distinct construction styles, including polygonal walls from the archaic period and medieval towers reinforced with brick and stone. The summit provides a comprehensive vantage point over the Argolis plain and the Gulf of Argolis. Strategic importance throughout history led to its repeated destruction and reconstruction by various occupying powers. Large parts of the structure remain accessible, though many interior buildings are in ruin. The site serves as a significant historical landmark representing the defensive evolution of the Peloponnese.
The highest point of the Venetian bastions, offering a panoramic view of the city below and the surrounding Argolic plain.
Wear sturdy, closed-toe hiking shoes as the terrain is uneven, rocky, and potentially slippery.
Carry plenty of water, as there are no facilities or shade once inside the castle walls.
Use caution near the unguarded perimeter walls, as there are steep drops without railings.
Do not attempt to drive all the way to the top in a standard sedan if the road is muddy or poorly maintained; parking at the base and walking up is safer.
The site is typically open during daylight hours, but access can be restricted following extreme weather events due to terrain instability.
Respect the archaeological ruins by not climbing on fragile walls; carry out all trash.