Playspot: Belgium, Ardennes, Tillf area, River Ourthe, Tron-Chique.
Attention (January 2003): The weir has moved again. Both sides are now completely downwards, much more than ever before. The result is very bad: the wave is almost flattened with hardly any foam. Surfing/spinning is possible, but no vertical moves anymore. Catching the little eddy in the middle is harder than ever... Under 100 cumecs the spot is certainly not interesting anymore.