Riviera Travel will star in two episodes of TV show Cruising with Susan Calman.
The comedian, writer and presenter will take a seven-night sailing along the Douro on Douro Elegance, visiting Porto, Mateus Palace, Salamanca and Almeida.
Viewers will see Calman sampling a range of guest facilities, including the onboard restaurant, sun deck, lounge and bar.
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Riviera Travel chief executive Phil Hullah said: “It was a pleasure to welcome Susan and her team onboard. The Douro is consistently popular with UK holidaymakers and we can’t wait for viewers to see for themselves why it’s so appealing.
“River cruises continue to grow in popularity and we’re confident that having Susan travel with us will further highlight their relaxing and immersive appeal.”
The episodes, part of the show’s third series, will air on January 26 and February 2 on Channel 5.
Carnival Cruise Line featured in the opening episode of the series, with Windstar also appearing this month.