Austria

My wife and I did a cycle tour in Austria a number of years ago. We traveled along the Danube Cycle Path from Passau near the German/Austria border to Vienna. The route was mostly flat, paved and mostly on separated bike trails so you had very little automobile traffic. We got a great tour book from the company that arranged our tour (Rad & Reisen, https://en.radreisen.at/) The book was waterproof so if it got wet it didn't matter and it included maps, things to see, places to visit etc. The tour company arranged for our bike rental, hotels and luggage transfer for the entire trip.