The vessel left Trier in Germany on Wednesday (22 September) to embark on a 13-night roundtrip voyage calling at Bernkastel, Traben-Trarbach and Piesport.
Amenities onboard include a lounge, bar, library, fitness area, sun deck, alfresco barbecue and two restaurants.
Chief of Saga Holidays, Chris Simmonds, said the ship was designed "with our customers in mind".
"And when they step ashore, we’ve carefully curated our itineraries to show them the best of the region with a range of unique experiences," he added.
A seven-night "castles and vineyards of the Rhine" cruise from Switzerland into Germany and Breisach departs between October 2021 and October 2022. Prices start from £1,099pp.
