Jan 26, 2015 · The Saar River is a tributary of the Moselle, and the Neckar is a tributary of the Rhine. What’s The Best Rhine River Cruise? If you have never taken a cruise on the Rhine, an itinerary between Amsterdam and Basel would probably be the best option.
While the Rhine is over 800 miles long, the 36-mile stretch from Mainz to Koblenz is by far the most interesting. This is the Romantic Rhine, a powerful stretch of the river slashing a deep and scenic gorge. And the best way to see it is to cruise it.