If you would like to enjoy the changing season

Drive out to the columbia Gorge. Make it an early drive and check out the grounds at The columbia Gorge Hotel, then step in and have breakfast. They have a beautiful waterfall, and authentic bridges dating back to...you better ask someone.
While out in that direction take note of the Multnomah Falls, and the dams. The dams have a neat viewing area of sturgeon in their natural enviroment, and vending machines that dispense fish pellets so you can feed the fish. There are picnic tables and a gift shop. You will enjoy this. They are called the Bonneville dams.