We are planning a driving vacation from Portland, Oregon to San Francisco, California this summer, and would love suggestions on what to see along the way. I have 7 days, and would definitely like to visit Crater Lake in Oregon, and the redwood forest area in Northern California, but would like ideas for other stops along the way for natural beauty, hiking that is not extremely strenuous, and interesting towns to spend the nights. In a perfect world we would not drive more than 4-6 hours in a day. I would appreciate any ideas. Thanks!