What cruise ships sail on the river Rhine?

Avalon offers a variety of cruises on the Rhine river. With the newest, quietest, and most spacious ships, state-of-the-art resort-style amenities, and incomparable service by English-speaking crews, Avalon lets you experience the region in a world-class way. You can take a virtual tour of several of our ships at http://avalonwaterways.com/common/Experience/index.html