Planning a trip for the Acadia centennial? Here’s how to make it the best June 13, 2016acadia, mount desert island, travelacadia centennial, acadia national park, maine, travel By Cherie Galyean Planning a trip to Acadia National Park to celebrate its 100th birthday? Here’s how to make the most of your trip, including the best planning guides and special programs to get your kids excited about exploring.