After any trip suggestions from Niagara Falls to Portland Maine?

[cgroh360]

My grand daughter is getting married in September and they are going to Niagara Falls and then up to Portland Maine, I know how I would go on the bike, but they are taking a class C motorhome, so I thought I would ask people who know the area about what is the best route. I know this is a hard question because everyone is different in what they like to do and see but worth the asking.
I told them to take 90 to around St. Johnsonville and the start taking two lane roads and that's where I need help from people who live or know that area - what to take from there.
I know this is like asking what oil to use or what tires are the best, but let's be nice and see what we can come up with.
Thank you.

 

[Mikey]

For me taking the two-lane roads and stay in the mountains would be my choice of routes!

 

[CopperSpyder]

I would go 90 to 495 north in Massachusetts then 95 North in NH to Maine once in Maine there are two way you can go 95 north Highway or Rt1 north. Rt1 is the two-lane coastal route has some campgrounds overlooking the ocean 95 will take right to Portland.

Don't Know how long they have to get to Portland or how they are at driving a class C motorhome so that is the quickest way and all highway wide roads (easy drive).