Hi, we're flying to Seattle and have 10-14 days. (Parents, kids ages 9 and 11.) One parents wants to do a major road trip, while the other wants to not drive and take it easy. Help!

1. One possible route is Seattle + day trips, then to Vancouver by train. Maybe rent car and go to Whistler.
2. Another Seattle, then train to Glacier National Park, rent a car for a few days and take the train back.
3. Stay largely in Seattle, take a few day trips.

Kids have never seen the Pacific Northwest. I'm dying to go to Glacier.

Advice? Thanks!