The service will provide guests with optional extras, such as more regional airport choices and alternative airlines, a door-to-door UK drop-off service and pre- or post-cruise hotel stays.
The scheme, announced last month when Riviera confirmed plans to add more 10-day river cruises, applies to 342 cruises and 66 tours in 2023, and will also be available on all like-for-like 2024 departures.
Robin Shaw, Riviera Travel chief operating officer, said: "Understandably, customers want flexibility and choice with their holiday arrangements, now more than ever.
"As a result, we’re pleased to be able to enhance our services through Travel Concierge. From hotel upgrades to holiday extensions, we’re here to make your time away easy and even more memorable."
