Ortwin Grüttner: giant rafting track marble run

Neues vom Hannoveraner Kugelbahn-Kreativen OG (MURMILAND). Aus dem Begleittext:  „You are the yellow marble on the rafting track.
From the entrance it goes 200 cm upwards in a special elevator.
Followed by 500 cm of acrylic glass tube. Downwards it goes through a 1500 cm distance.  Good luck on the dangerous track. There are already some crashed.“