That contrast can make a winter trip especially memorable. A river ship feels connected to the towns it passes. Why Christmas Market River Cruises Feel More ManageableChristmas market river cruises combine several seasonal destinations into one continuous trip. Celebrity Cruises’ holiday river sailings travel through Rhine and Danube regions where historic towns hold markets in central squares. A Winter Journey Built Around AtmosphereEurope’s Christmas markets are popular because they turn ordinary public spaces into places of celebration.