So, why Koblenz as a starting point?
Mostly, because the Rhine Valley Railway is the most beautiful railway in Germany, and I felt that it would be nice for any trip of this magnitude to go past this stunning scenery.
We tried to fit it in several different ways. There aren't that many ICE trains that go through Koblenz, all either :ice_1: ICE 1s or :ice_t: ICE Ts and we wanted to do it in the daytime to have a chance of seeing the river.