"Our cruise itineraries on the Danube have not been affected too much," said Schreiner, "since there are numerous hydro-electric power plants on the Danube, and these dams can withhold water flows and thus maintain water levels high enough for uninterrupted river cruising. Budapest was the only area with occasional low-water problems because there are no more Danube dams below Slovakia.

Source: Los Angeles Times December 13, 2018 12:00 UTC