Visit Maine's northernmost lighthouse in Calais, which is located on the St. Croix River near the international border with New Brunswick, Canada. Whitlocks Mill Lighthouse, still operational today, helped guide sailing ships in from the Passamaquoddy Bay. You can view the 25-foot-tall lighthouse from the St. Croix River View Rest Area on Route 1 (the grounds are not open to the public).
In town, you can stroll along the Waterfront Walkway and observe some of the highest tides in the contiguous United States. You can also use Calais as your home base to go fly fishing for landlocked salmon on one of the 40 lakes that are within 30 miles of this town. Just a short drive from Calais, you can also explore the 23,000-acre Moosehorn National Wildlife Refuge, where you may be able to spot moose, deer, bear, eagles, beaver, mink, geese or woodcock.