What are they for?

Even in unexpected places you find them being sold.

Crossing the bridge over the Rhine we discovered what these ‘crazy Chermans’ do with them.

They put their belongings into them and jump in to the fast flowing river using them for flotation. In the afternoons they seem to attract spectators on the banks.

In Australia, we would describe the speed of the flow as perilous but even as night fell, past they would bob. Hope to God it’s not suicidal or something like Logan’s Run.

How or where they got out we never found out.