Castiglione della Pescaia (Italian pronunciation: [kastiʎˈʎoːne della peˈskaːja]), regionally simply abbreviated as Castiglione, is an ancient seaside town in the province of Grosseto, in Tuscany, central Italy. The modern city grew around a medieval 12th century fortress (Italian: castello) and a large fishery, from which it acquired its designation. Today Castiglione is a very popular tourist destination with attractions that include beaches, natural parks, biking trails, historical Etruscan archaeological sites, a panoramic mediaeval hamlet as well as the natural reserve Diaccia Botrona, a swampy humid environment of historical relevance whose endangered wildlife comprise pink flamingoes, mallards and ducks.