Acadia National Park in late October

I have been there once. Bar Harbor was a port on a cruise I was on. It was the last Sunday in September of 2016. I remember that because I was standing on top of Cadillac Mountain when the news broke that Les Miles was fired. We were hoping to see the fall foliage but the leaves were just barely starting to turn colors. You have to time it just right. We were there a little too early. A couple of weeks later would have been perfect. Even at that time it was pretty cold, especially on the mountain. I can't recommend a hotel since we were on a cruise but there are a number of nice hotels in Bar Harbor. I do recommend going to the park if you have the chance. It is a beautiful place.

I'm not sure about the time of year question since we were there in early June, before the big crowds but still good weather. We stayed at the Atlantic Oceanside Hotel. It was decent and right on the water which was great. Acadia is a blast, we did quite a bit of hiking. We spent a day and a half doing Acadia, I would have enjoyed a couple more. Another suggestion I would have is on the drive from Portland to Bar Harbor take Highway 1. It's more along the coast and you go through a lot of cool towns. It's not the quickest way to get there, but definitely a cool drive. On the way back you can take the interstate.

Also, eat breakfast at 2Cats in Bar Harbor. It was very good.