On your second day, embark on a boat tour of Lake Garda. Admire the picturesque landscapes and crystal-clear waters as you sail around the lake. Stop at the Grotte di Catullo, an ancient Roman villa ruins located on a peninsula. Explore the archaeological site and learn about its fascinating history. Afterward, head back to Sirmione and indulge in some gelato while enjoying the stunning sunset views over the lake.