Acadia National Park requires every runner to either have a valid park pass or pay $12 to enter the park. To obtain a coupon code for $12 off the race, email a picture of your valid 2016 park pass to [email protected]. We will then send you a coupon code within 2 business days. If you do not have a valid 2016 pass, your registration receipt will entitle you to enter the park on the day of the race or $12 off a pass at the fee station. Course features breathtaking view of Acadia National Park and Maine’s rocky coastline. It is a Spectacular 13.1 mile course traveling on the scenic Acadia National Park Loop road. The third largest island on the eastern seaboard, Mount Desert Island boasts an impressive 41,000 acres of land devoted to the Northeast’s only National Park, Acadia - an amazing array of mountains and sea, cliffs and coastline.