Rhine and Danube Rivers

The Rhine and Danube rivers are visited by international tourists who traverse their waters via cruise ships. But this past August, more than 60% of Europe was under some form of drought alert or warnings, CNN reported. And those dry conditions especially affected the Rhine and Danube, which flow through several countries in Europe.
This July, the Rhine was only a few inches away from failure, which meant levels were so low it would have been impossible for shipping vessels to pass. Shipping vessels and cruise ships have had to change routes to accommodate for the extremely low water levels this year.