For the start try Ben Howard road and you will learn as time goes on. This is a back road between Monroe and Sultan. Ben Howard road is connected to Hwy 2 via two bridges (Hwy 203 bridge and Mann road bridge) under which there is also good bank access. Under the Mann road bridge near Sultan there is parking lot which takes you to the river with good bank access. Just follow the trail. There are several good bank access along the Ben Howard road as well. You may see parked cars in most places that I have mentioned but you will find elbow room. Most car owners that I have meet were not rude but who knows you may get lucky.