Marella Cruises and Tui River Cruises summer 2022 programmes go on sale on November 5.
One of three river vessels, Tui Maya, will go all-inclusive as standard.
Six additional itineraries will be available across three Marella Cruises ships, with another itinerary by Marella Discovery on sale from December 10.
Marella will put 18 cruises on sale next week and a further five in December covering islands such as Santorini, Kefalonia, Corsica, Sardinia and Sicily and cities like Dubrovnik, Barcelona, Split, Venice and Lisbon as well as gateway ports to Rome, Florence, Seville and Athens.
Marella Discovery will homeport in Palma for the fourth time after its first season in the Majorcan capital in 2016.
The all-inclusive offering onboard Tui Maya will include a range of alcoholic drinks and premium Lavazza coffee.
Those who upgrade to superior, superior French balcony or French balcony suite cabins will have a free minibar included in their package.
All departures on Tui Maya in summer 2022 will be on Fridays.
Two new itineraries have been added to the sailing programme on the Rhine and Main rivers.
Cruise managing director Chris Hackney said: “We’re pleased to be able to share details of our summer 2022 programme and we are really excited to offer our first all-inclusive ship in our river cruise line.
“We have something to offer everyone as we have itineraries visiting some of the best places in the world.
“Our river cruise line is constantly developing and we’re always listening to what our customers want and we want to offer even more choice when it comes to booking their cruise.
“With a high percentage of guests already booking all-inclusive, it only seemed right we created a ship dedicated to the board basis, so we know it’s something our customers will love.”