Neat tool! Thanks for the info. To explain, I have been removing `whitewater=hazard` from dams and weirs because these should always be considered hazards to paddlers. We can add access tags like `canoe=yes` if a weir happens to be runnable. Relying only on `whitewater=hazard` runs the risk of missing any dams and weirs that have not been tagged this way. However, I will defer to the local community if that's how you want to tag things in this area :)