The Rhine is a series of seventeen photographs, made on a Cargo ship  from the source to the estuary of the river Rhine.
It are registrations with a technical camera and long exposures on the deck of the ship. Here you can see some of it already:
'From Koblenz to Die Lorelei, and The Ruhr under an almost full moon', and 'Destination'.
It is also a 60-hour continuous recording in which the entire journey from Amsterdam to Mannheim is filmed.