This is a lovely landscaped park located in Valeggio. Easy to get around and lots of lovely spots to see - including a lovely view of the castle!
I couldn't not call out the best ice cream place I've ever experienced! Located in Peschiera on Lake Garda, a beautiful little stop if you've got time in the region (you would need a car to get here from Valeggio). Peschiera itself isn't bad either ;).