I cannot comment on the fishing further out as i just have a canoe. I have canoed a lot out on G Bay, mostly in the FR area and I have seen quite a few instances of those seiche flows thru narrow channels. We live on the Notty just off the bay and have seen the water rise and fall at the beach. The water level in the river for quite a few kms upstream also depends on the onshore winds. It took me a while to realize that. I had always thought that the level was solely determined by the flow coming downstream. The level on the bay can change by at least a ft, esp in the fall when we get sustained NW winds. There is an online gauge at Cwood. If you check it out you can see how much the level can change.