I think this is one of the loveliest stretches of the cycle path along the Danube river. It’s narrow and hilly and so the area is quite empty of people, and more importantly, cars.
This was the second time I cycled it on a tour from Thuringia to visit friends in Switzerland. River cycle paths have the advantage of being (mostly) flat, hence the heavy load on the pannier isn’t too hard to carry. And it’s surprising, that after few days the body gets fully used to that load.