I'd like to take a road trip with my girlfriend this summer. We are both gainfully employed so money will not be our main constraint, time will be. At most we could take two weeks vacation time so that would give us about 14 days from start to finish. We have traveled together several times before but it always involved a single destination, typically in the Caribbean, so this will new a new experience for us.
So we will be setting out from Philly and I figure my best bet is to rent a car and fly home, which will save us a few extra days of driving. Id like to get to the following places on our trip:
Finish: San Fran.
Is this way too much for a two week period? Would I be better off flying into CA and just driving a loop to hit up most of these places? I really want to see the national parks I listed. Vegas and Colorado could be saved for another time I guess.