The "Wellerbrücke" river section is one of the most difficult white water routes in the world - it is not for nothing that it is also called the Eiger north face of kayaking sports. Until the mid-1970s, the section of Ötztaler Ache known as "Wellerbrücke Rapids" was considered impassable. Only in December 1976 the section was opened up and kayaked for the very first time.
The course that the participants have to complete is around 300 meters long - the route has an average gradient of 10 percent. The level of difficulty varies between level 5 (extremely difficult) and level 6 (only passable under ideal conditions) according to the international whitewater difficulty scale. The key passages have sonorous but also intimidating names like "Minus One", "TNT Rapid" or "The Champions Killer".