Looking for the best things to do in Sirmione, Lake Garda? This complete guide covers Scaligero Castle, thermal baths, Grotte di Catullo, sunset boat tours and the finest restaurants in the historic centre. Whether you're visiting for a day trip from Verona or Milan — or planning a longer stay — find out why Casa Scaligeri Boutique Hotel is the perfect base in the heart of Sirmione.