If your trip to Sirmione is all booked but your travel itinerary is a bit on the empty side, let us give you a few hints and tips.If your friends and family ask why you're heading here, just show them some images of Scaliger Castle and Grotto of Catullus. These terrific attractions will ensure you have a memorable trip.Close to the city center, Center Aquaria Spa and Wellness Center is one attraction you might like to consider putting on your to-do list. Santa Maria Maggiore and Church of San Pietro are also a stone's throw away and worth a detour.