I am traveling to Italy this summer and I arrive on the 25th of August and leave on the 7th of September. My arrival and departure airport is Rome. These are the places I know I want to go to at a minimum but not sure which order to go to or how long to stay in each: Rome, Bellagio, Venice, and Positano. I plan on using the train so would want to factor that in to tour. Walking around in the heat or hikes is not of interest. Enjoy beaches, lakes, fresh air, shopping, some sightseeing, and restaurants. Any advice is helpful especially the order to go around Italy. Thank you.