Low water levels on rivers in Europe are forcing many river cruise lines to evaluate upcoming sailings.

Avalon Waterways canceled the departure of "Highlights of Germany" river vouage on Avalon Affinity, due to low water on a stretch of Danube River between Nuremberg and Regensburg. The cruise was due to start on July 19, departing from Passau to Basel. Avalon offered affected clients the option of another river cruise in Europe on a similar departure date or full refund with future cruise credit.

Viking River Cruises informed guests on Eistla that ship changes might be needful during their cruise departing on July 19 from Amsterdam to Budapest.

Uniworld announced that it was also watching the European rivers to make sure the ships of the company could sail. In a statement yesterday (July 17), the line said that all cruise programs were operating as per schedule, but water levels were low on the Danube, Rhine and Main and they had "contingency plans in place should any sailing schedule deviations become necessary".

Scenic Cruises announced that the river boat on its "Jewels of Europe" itinerary had passed the critical area on the river without incident. The line had contacted all guests with forthcoming departure dates and had communicated all of the information Scenic currently had. In the event that the line needed to make other arrangements, they would ensure that no sightseeing, nor attractions were missed.