One of my all time favorite views is from Hurricane Ridge in northern WA. The last time I was in Seattle, Gimpy's was the best place to go for really fresh seafood. There are many places where you can see whales, A ferry ride to the San Juan Islands is very likely to go past orca whales. I really love the rain forest, especially the HO valley. We also drove up Mt Baker (I think) and saw hundreds or thousands of blooming wild rhodedendrons. Remember, however, that driving and walking times need to be taken into account. Yes, the Rogue River jet boat trips are marvelous...best to go early in the day IMHO.
I am sure both states have tourism websites to tell you more.