My son and another friend are flying in and out of Paris in July (during the Olympics) to see a friend who is studying in Metz, France. The friend will be finishing up school by then so they have more or less an "open itinerary".
Would you have any recommendations on cities that would be fun for 20 year olds who have never been to Europe? To how many cities would you recommend they travel in such a short time?
Also they are planning at least one night in Paris on the return trip before flying back. Would you recommend at least 2 nights in Paris?
They have passports and the like history (seeing cool things) and partying.
Thank you so much!