I've got a round trip to Paris from March 23 to April 2. This is my first time in this area and I do not know how I can use this time efficiently.
I am pretty sure that I need to consider 5 days for Paris: 1 day for Louvre (I am not sure if I want to dedicate one whole day), 1 day for Versailles, 2 to 3 days other Paris attractions. For the rest of the trip I like to visit nice Swiss alps or Chamonix (places with style of Dolomites but not that far). Also I really liked Bern.
Except Paris attractions, I am more looking for unique landscapes which cannot be seen in any other places on earth, especially where I live California.
I am taking this trip under low budget and with a large backpack, and I have plan to stay in hostels.
Please advice me with everything you think that would help me, everything: If I need to skip places, if I better rent a car rather than taking train for going to alps, sleeping in the car rather than going to hostel, etc.
In general, what would you do if you were a first-timer and wanted to see wonders of this region (France, Switzerland, and Italy) in 10 days.
P.S. I am traveling alone.