We are looking for a nice day trip suggestion in Tuscany from our base in Orvieto. The last time we were there we visited Spoleto, Montepulciano, and Civita di Bagnoregio. We will have our own car and have never to been to Siena or Assisi. Would you recommend these towns? Can they be done in one day? We are a very active family of 4 and would have spent several days relaxing pool side in Orvieto. We are looking for a town with plenty of charm and history but not too overwhelming or crowded (even though it will be mid-late August). Please let me know your thoughts or if you recommend other towns and why. Thanks in advance!