Amadeus Riva will offer a variety sailings on the Danube and Rhine, as well as a range of itineraries on the Dutch and Belgian waterways.
From spring 2023, Riva will offer guests a choice of 12 suites with walk-out balconies and 68 exterior cabins across three decks.
The vessel will also offer numerous luxury outdoor dining venues such as the Panorama-Restaurant, Cafe Vienna and the open-air River Terrace bar.
It will also include a wellness area with a massage, hairdresser and fitness room and a sun deck with a lounge and outdoor restaurant.
Martina Lueftner, founder and managing director of Amadeus River Cruises, said: "With the Amadeus Riva we continue our 40-year tradition of excellence by providing a contemporary response to the strong worldwide demand for premium river cruises.
"This includes modern elegance and luxurious comfort as well as innovative and pioneering standards in environmental protection and ship technology."
The line said Riva’s engine will enable "highly efficient" energy management and reduce Co2 emissions.
Riva will offer an eight-day Classical Danube cruise, taking guests from Passau to Budapest, and a 10-day cruise along the Danube from Vienna to Bucharest.
