Ston Walls

The Ston Walls are a system of medieval defensive fortifications connecting the towns of Ston and Mali Ston on the Pelješac Peninsula of southern Croatia, constructed by the Republic of Dubrovnik beginning in 1358 to protect the peninsula's economically vital salt pans. At their greatest extent, the walls stretched approximately 5.5 kilometres through the hills between the two towns, making them the second-longest preserved defensive wall system in the world, after the Great Wall of China. The walls incorporated 40 towers and 5 fortresses, of which a substantial portion survive today in restored or original form. Climbing the walls from the main Ston gate provides an immediately dramatic ascent to ridge height, where the view encompasses the Neretva estuary, the Mljet Channel, and the mountains of Bosnia-Herzegovina on clear days. The walls descend through a series of towers to Mali Ston on the northern channel, where the famous oyster and mussel beds of Mali Ston Bay have been farmed for centuries in the brackish water where freshwater springs meet the sea. The oysters grown here — particularly the prized flat European oyster, Ostrea edulis — are harvested and served at the konobas lining the Mali Ston waterfront within hours of leaving the water. The main Ston town retains its orthogonal Dubrovnik-era street grid and active salt pans, still commercially harvested using traditional methods. The walls circuit takes approximately 2 hours to complete; the route is exposed to full sun with no shade and limited water points, making early-morning or late-afternoon timing essential in summer.