My wife and i have been to this area, staying in San Savino for every year for the last seven years so i it's obvious we like it.
Although we tow our solid sided folder we don't use it while there, preferring to stay in hol house. We go for a couple of months so the house is a break from the the folder for a week.
There are a couple of sites at San Savino on the lake side. We have not had a close look at these. Nearby is the town of Magione which has supermarkets. If you fire up Google earth you will see photos of this area, some of which are mine. I dont know how you could obtain my e amil address without me posting it here, not sure i want to,but i have many photos of this area which might help you. The great advantage of this area is the motorway that runs down the middle of Italy, allowing you to see sights a bit more distant than you might normally travel. You can meander of through the countryside but zoom back home quickly if required. If you are lucky with the weather you will not regret your visit.
David, Colchester