It is a sequence of three drops. The first is 1.5 m high, the second 8m and the third about 3.50m.
To go there, drive up the valley above Winkel. Park your car in the car park just below the bridge where the road changes side. Then walk 200m down and you arrived.
We had a medium high water level. The upper limit is given by the third drop. If the water level is too high the take off and the reception will become too boily.
The water levels within the area were: 58 cm on the Ahr et 75cm on the Defereggenbach, 114 on the Isel. It can give an idea.
The water level can change quickly there because of the dam. We had an approximately 10 cm increase of the waterlevel within 15 minutes and it went down again immediately after that.