I need help in planning a 6 week summer 2009 road trip to the Pacific Northwest that includes a 2 week cruisetour of Alaska. I will be driving my parents who are in their 70's from the Detroit area and will need to make frequent stops and require a slower pace. My father depends on a scooter for distance walks and my mother is a slow mover but able to get around. Our transportation will be a mini-van. Some points of interest include Colorado Springs & Boise to visit family, San Francisco, giant redwoods, Portland OR, Mount St. Helen's, and others. Where do I begin?