Make sure to visit the namesake of the park (you can hike or drive up). If not for the important history of this trail (its construction inspired the Long Trail and then the Appalachian Trail and then the CDT, PCT, etc.), some of the best hikes are the other ones thanks to the relative solitude. Go in early-mid October to enjoy the fall colors and to find more peace and quiet. A number of sites have lean-tos, as is northeast tradition. Some of the campsites are close to the road but we didn’t notice too much noise (but we weren’t in the ones closest to the road.