Acadia National Park is thus far the best national park we have visited. The ingredients of the beautiful coastline, Mountains / Islands, and the ocean all in one scene will keep this park in the top 5 as we continue our journey to visit all national parks. Once you enter the park and are traveling the "loop" you will have the option to hike many trails along the way. We did a few trails and they were easy and good. We stopped at Jordan Pond, Sand Beach, Thunder Hole and Cadillac Mountain. There is a part of the loop that you cannot take a class A RV, but we had no issues with our Class B RV on any of the roads including The Bass Harbor Lighthouse! Speaking of Class B RV's we actually went up to Cadillac Mountain early, got a parking spot, napped and waited to see the Sunrise. Cadillac Mountain was worth the trip itself! There were several campgrounds to choose from if you visit in and RV, and our favorite was the Bar Harbor Campground, near the Acadia entrance.