Viking adding more Longship river cruises

After launching over 50 of its new Viking Longship river cruise vessels and a new fleet of spectacular oceangoing ships, Viking Cruises recently announced it will be bringing seven new Viking Longships to the rivers of Europe in 2019.
The new, as-yet-unnamed Viking Longships will cruise Europe’s Rhine, Main and Danube Rivers. One additional vessel, with Longship-esque design elements, is being designed expressly for Portugal’s Douro River. By the time they enter service in 2019, Viki