The Mount Desert Island YMCA Fall Half Marathon is the only half marathon that runs through a national park. This September, follow a challenging loop course along Acadia National Park’s historic carriage roads, an excellent running surface far away from cars. For over 40 years, this half marathon has supported the MDI YMCA as their biggest fundraiser of the year. Support local recreation programs and youth development while running a spectacular course through Acadia.

Stay
Connected
with
Bar Harbor

Join our community of adventure seekers and relaxation lovers. Sign up for our mailing list and you’ll be the first to know about:

  • Exclusive deals and discounts
  • Upcoming events and activities
  • Travel tips and local insights
  • And so much more!