On the Donau there is current, with a different look and feel from the previous waterways. On the Donau one must watch the water level carefully; it can change by one meter overnight. You can be in a comfortable slip or anchorage in the evening and aground or trapped in a harbor in the morning. You will need to know the levels to determine which harbors suit your vessel’s draft. On the German Donau, there are plenty of pegels (water level index) to inform you of the water level.
The table shows the KM Post markers starting at Kelheim, Germany; KM to is the reverse, the distance from Kelheim. The country name cell includes the 2-letter identifier, local name for the Danube and the length of the river in that country.