Rijnhuisje

The Rijnhuisje offers a new way of recreating within the rules and regulations of the dock and the waterways. The Rijnhuisje is, just like a boat, fastened to a bollard on the quay and hung over the edge by means of a pulley. 

So you have a wide view over the river and its banks. You will literally turn your back to the city and the floodplains become your backyard. Quays and bollards are the same everywhere, and thus the Rijnhuisje can be used everywhere.