My wife and I will be flying via Condor from US (Baltimore) to Frankfurt for a 2-week honeymoon (June 24-July 7). The general plan is Frankfurt to Alsace to Berner Oberland (haven't figured out how we're getting back to Frankfurt yet - suggestions welcome). My hope is to go directly to Alsace from Frankfurt airport (spending as little time and money as we can). We have a 3 night reservation near Kaysersberg June 24-27; after that the plan is to get into Switzerland. I can change the reservation if I have to.
I'd like to have a car in the Alsace area but will NOT have one in Switzerland. So two main questions:
1) How do I get to Kaysersberg/Colmar area from Frankfurt airport most efficiently?
2) How/when do I get a rental car for our first few nights/days and return it before the bulk of our trip in Switzerland? My thinking is to rent once in the Alsace region/Colmar but then how/where would I return it to get us into Switzerland properly?
*hope this is the right place to post, I know there's a Swiss element to these questions as well...