On our last day in Heidelberg, we will be heading to Frankfurt for our flight the following day. This is next month.
We will have a few hours to maybe take a Quick Look around. Staying at the airport because the flight is like 6:30 in the morning, so prefer to be at the closest airport hotel.
I see that there is a river tour of the city. Anything else you might recommend? I know it’s not much time. Appreciate any ideas.