Valderice is a town and comune in North-Western Sicily, Italy, administratively part of the province of Trapani. The city is located in t…Valderice is a town and comune in North-Western Sicily, Italy, administratively part of the province of Trapani. The city is located in the inland, close to the provincial capital city of Trapani, but includes also a seaside frazione, Bonagia, in its territory.