Planning a trip to Santa Ana,CA to visit family and 2 days in Disneyland during winterbreak. Leaving from Seattle and planning on taking 3 days to get down to Santa Ana. Traveling with a 2 yr old and 10yr old so will be making lots of stops. Thinking of doing I-5 down through OR, cutting over to 101 at Grants Pass for the night, spending some time at the Redwood Forest, then down to San Francisco for a night before getting to Santa Ana. Any advice? Places to stop so the little one can run around? Worried about the weather so any advice there would be helpful as well. Have read through many posts already so want to put out there that flying is not an option and realize it may be difficult with our little one which is why we are planning lots of stops and overnight stays. Thanks!