Bicycling along the canals
Coffee-shop crawling
Eat Swiss chocolate
Hiking in Swiss Alps
Cruising Lake Lucerne
Eat gelato
Tasting Italian wine
Hiking
Eating French croissants
Shopping in Parisian boutiques
Eating in cute cafe's
Taking pictures
Cruising river Seine
If you have more time, consider adding a day trip to Rotterdam in the Netherlands, Gruyères in Switzerland, Pisa in Italy, or Versailles in France. If you have less time, consider skipping a day trip or reducing the time spent in each city.