We are arriving in Frankfurt 4 days prior to our ETBD tour. We are going to rent a car and wondering if we should just return the car to Frankfurt or try and find rental return location close to St Goar, the first stop of the tour.
Debra,
We [husband, teen daughter, and I] did that a couple of years ago, sightseeing around Heilbronn and in Alsace before our GAS tour began. We returned the car to Hahn airport [figuring it would be easy to find] and took a taxi to St Goar; that seemed simpler than trying to return the care in a town and catch a train to St Goar, and it worked out well for us. I can't remember the price for the taxi, but I found some taxi companies on the Hahn airport site and got estimates from them so I knew what to expect.
Have a wonderful trip!
Most of the major rental car companies (Sixt, Europcar, Hertz, Avis) have an outlet at Koblenz train station which isn't too far from St. Goar.