Photo: Martin Fisch, written in the sky
Wikipedia: The Rhine (German: Rhein) is a European river that begins in the Swiss canton of Graubünden in the southeastern Swiss Alps, forms part of the Swiss-Liechtenstein, Swiss-Austrian, Swiss-German and then the Franco-German border, then flows through the German Rhineland and the Netherlands and eventually empties into the North Sea.
Photos
Wikipedia
Rhine
Cities
Amsterdam – Basil
Countries
germany, Austria, switzerland, France, netherlands, Liechtenstein
River Cruises
Late March-October; also some special cruises during Christmas/New Year’s
http://www.fodors.com/world/europe/itineraries/rhine-river-cruise-60
Planeta.com