Interstate 95 can get you from Portland to Bar Harbor in about three hours, but nobody remembers that drive. US-1 takes the long way up the Maine coast, through harbor towns where the lobster boats outnumber the cars — past the lighthouse on the state quarter, the windjammers of Camden, a granite fort, and finally across to Mount Desert Island and Acadia National Park.
It's about 175 miles and four hours of driving, but give it four days so Acadia gets two of them. Here are the stops, a day-by-day plan, and the reservation you need for Cadillac Mountain's summit road. Let Wanderply build your version around your dates and narrate each harbor and headland as you go.