AmaWaterways is cutting prices on selected 2023 and 2024 European and Mekong river cruises by 20%.
The discount applies to bookings with the luxury river cruise company made by September 30.
More than 70 cruises are included in the offer this year and 340 departing in 2024.
The promotion covers all categories of cabins and suites but port charges and extras, such as flights and transfers, are not included.
Discounted rates include a seven-night Danube itinerary in February next year down by £361 per person to £1,611.
Managing director Jamie Loizou said: “River cruising offers such fantastic value for money compared to land based equivalents, and our latest promotion enhances this value even further.
“Our focus is always on helping our travel agent colleagues grow their river cruise business and with so many destinations and departures included, we will undoubtedly tempt agents to sell river cruising and AmaWaterways for the very first time.
“Once on board, our guests will enjoy award-winning, locally sourced cuisine paired with complimentary fine wines as well as a range of complimentary immersive shore excursions, including cycling and hiking options.”