If you travel to the Salmon la Sac campground in the fall, I'm sure you will see spawning Sockeye. Just look down off the bridge that crosses the Cle Elum River. I went there twice this fall, the first time was the last week in September and I saw over 50. I went again the second week in October and we only saw about 20. It was an awesome experience. It's incredible how far they travel during their lifetimes only to return where they were born.
Looking up at the Cle Eum River bridge