A raucous natural phenomenon, this semi-submerged cave booms an hour or two before high tide. Waves fill the cave in such a way that the slapping is as loud as a thunderstorm – hence the name ...

Thunder Hole is one of Acadia National Park’s most dramatic natural attractions. This narrow, rocky inlet is perfectly positioned to capture the force of the Atlantic Ocean, creating a ...

Park visitors agree: riding along the 27-mile Park Loop Road is the best way to do a quick tour of Acadia (and makes a strong case for renting a car). Popular sights and trails like Sand Beach ...