Above Bonneville - no retention right now and can be windy and rough, some excellent holes for sure... This winter was bad, not a lot of fish came out.
Kalama - Slow, even at the good holes......
Washougal - Slow, even at the good holes.......
Below Bonneville - Good and will get better as water heats up a bit, but closure will be in a affect here real soon.....
After that marker 82? Can't remember and below has some good areas on both sides, but for all day fun, maybe not...
Roster Rock - nice holes, but if water levels raise then it holy heck staying on bottom, unless you bring out the big guns (32ouncers)
My advice if your strictly looking for fun and no retention is to go to the Willamette River. Once the Columbia goes entirely to C&R I won't anywhere but Willamette, as I just have a real like for that river and if it for fun then might as well have a lot of it...