A different trip to the Dolomiti area, expecially during summer, consist in visiting the area inside and around the famous Dolomiti National Park. Being known as the place with the purest air of the whole Italy, the National Park of Dolomiti lies north to Belluno.
You could start your trip from that city, obviously with a car. Following the old Via Agordo, keep going east until you reach Vignole. This small town is incredibly clean and well kept.