There is a fairly big strainer at the bottom of Sidewinder.
Not very obvious from above. The only thing that gave it away was the branches becoming visible as the stopper died down. The main branch is buried into the v at where the drop and the opposite wall meet. Wouldnt move when we tried to pull it.
Also along some of the smaller rapids which go around corners there are some very low lying branches.
The run in to the drop before the bridge is a particularly bad spot with a large section of a tree covering most of river right.