Castiglione della Pescaia is an ancient seaside town in the province of Grosseto (Tuscany), Italy. The modern city grew around a medieval fortress (Italian: Castello) and a large fishery, from which it got its designation. Today Castiglione della Pescaia is known for its beaches and has become a center of international (mostly European) tourism.
Castiglione della Pescaia consists of a High City built on the hill that ends a chain of hills towards the sea, and of a Low City at the foot of the High City, straddling the drainage canal and marina that form the central part of town.
Castiglione is located in the South-Western portion of Tuscany, with a gorgeous view of the islands of Elba and Giglio, and of the promontory of Argentario. The hills that back the city slope into beautiful beaches that front the town in its entirety.
To the East of Castiglione is the rich floodplain of the Ombrone. Nothing much remains of the ancient lake Prile that used to be Castiglione's lifeblood.