Is this a reasonable rough itinerary for this route? Looking at round trip, using 101 on the way down and I 5 to return. It would be me and my kids-ages 9, 13 and 5 months. So, only one driver.

Any and all tips welcome!

Spring road trip
Stay ar holiday inn wxpress ferndale
Redwood national park
Day 1 seattle to salem or
Day 2 salem to brookings
Day 3 4 stay in ferndale see redwoods arcata other area sights
Day 5 head north via I 5; spend night ??
Day 6 mid or to chelasis or so
Day7 chehalis to seattle