Arrive in Düsseldorf this morning and take a motor coach to Venlo, where you will have the unique opportunity to visit the Floriade World Horticultural Expo. Bringing together more than 100 exhibitors from dozens of countries, the Floriade Expo grounds will feature five themed zones connected by wooded areas. Each of the zones contains its own horticultural exhibits, cultural attractions, activities, restaurants, music, dance and theatrical performances. Rejoin the ship for lunch, which is now docked in Cologne. Enjoy a guided walking tour through the city’s splendid Old Town and visit the city’s celebrated 13th-century gothic cathedral, one of the finest in Europe. As an alternative to a walking tour, take a guided bike tour (capacity controlled). Late tonight, your ship sets sail for Rüdesheim. Meals B,L,D