Recently found a piece directed at the problems of River Cruises throughout Europe and WATER LEVELS. Some too high for the boats to get under some bridges and others too low to actually pass through the area. Wondering if there are some specific areas and maybe even dates that if I was looking to go I might avoid. Similar to a general heads up for hurricanes over here in the caribbean during the Hurricane season. Not quite the same as generally the ship over here will take you somewhere....... but not enough water or too much means the boat won't go.