Hi, I'm new to this forum and hope you can help me. We are planning a road trip when we visit family in Portland OR next May. There would be 6 of us in total (my husband and I, my sister and brother-in-law plus their 2 teenage boys 12,14). We were thinking about including Yellowstone NP and Glacier NP but have some questions. Do you think this is doable in 7 days without spending the whole time driving? Can you recommend places to stop off and visit/stay? Any advice would be appreciated.