DÜSSELDORF, GERMANY. Enjoy a scenic cruise into Düsseldorf. In the afternoon, take a brief trip to the nearby city of Cologne on a guided tour of its enchanting Old Town, where you will see sites such as the Cologne Rathaus, Germany’s oldest town hall; the Fishmarkt, which dates back to the 12th century and the Great St. Martin Church. Then visit one of Europe’s largest and most renowned Christmas Markets. Or explore historic Düsseldorf on foot with a knowledgeable local tour guide. Conclude the tour with a visit to the local Christmas Market. Alternatively, cover more ground with an active bike tour of the city. (B,L,D)