I've hooked into salmon and steelhead right there at the rest area. I've also seen smallmouth, caught a ton of carp and trout in that area. The hike that you're talking about can take you to some very productive water if you're using the right gear for the right season. Right now, there should be some late fish in the water and some early fish. It's not going to be a consistent bite, but if you're lucky you might be able to fight something to the bank. If you're at the area right at the rest area...... try chuckin your gear just past the column (on the downstream side) and let it drift/plunk/whatever. If the water's right, there are fish right there a lot of times..... just remember that the section between you and the column.....has a ton of stumps and other obstructions..... fish them but be prepared to lose some gear.