Main Road loop

The Main Road loop on Isle au Haut offers a mix of terrain. You'll find sections of narrow dirt lane, especially within Acadia National Park, alongside both paved (about 5 miles) and unpaved (about 7 miles) roads. Mountain bikes are recommended due to the rugged island landscape, which includes craggy coasts, bogs, and forests. Expect beautiful ocean vistas, pebble beaches, coves, and maritime forests.

The Main Road loop is generally rated as moderate to hard for mountain biking. A moderate rating suggests up to 5 hours of riding and around 1500 feet of elevation gain, requiring good fitness. Some sections are unpaved and challenging. A 'hard' rating implies a ride exceeding 5 hours or 1500 feet of elevation gain, demanding very good fitness, and you might need to push your bike through certain segments. E-bikes are generally supported on some trails on the island.

The loop offers stunning national park landscapes, including panoramic ocean views, pebble beaches, and maritime forests. You'll pass by the Duck Harbor Ferry landing and the historic Robinson Point Lighthouse. The island's remote charm, with its craggy coasts, bogs, and forests of pitch pine, spruce, and balsam fir, provides a unique experience.

Isle au Haut is a remote island accessible only by a mail boat from Stonington, Maine. Bikers are required to disembark at the Isle au Haut town landing, which serves as your starting point. You can bring your own mountain bike on the ferry for an additional fee or rent one from Isle au Haut Boat Service. There is no traditional parking lot at a trailhead, as the entire island experience begins with the ferry ride.

Yes, dogs are generally allowed on the Main Road loop within Acadia National Park on Isle au Haut. However, they must be kept on a leash no longer than 6 feet at all times. Always ensure your dog is well-behaved and that you clean up after them to preserve the natural environment.

Over half of Isle au Haut is part of Acadia National Park. While there isn't a specific mountain biking permit for the Main Road loop itself, standard Acadia National Park entrance fees apply. You can find current fee information and purchase passes on the official Acadia National Park website: acadianationalpark.com. Also, be aware that biking is prohibited on designated hiking trails.

The best time to mountain bike the Main Road loop is typically during the spring, summer, and fall months when the mail boat operates regularly and the weather is most favorable. Summer offers warmer temperatures, but spring and fall can provide cooler riding conditions and fewer crowds. Always check local weather forecasts and ferry schedules before planning your trip.

Yes, the route also passes through sections of the Duck Harbor Trail, Ebens Head Trail, Median Ridge Trail, Head Harbor Trail, Deep Cove Trail, Goat Trail, Skolnikoff Shores, Old Cove Road, Nat Merchant Trail, Bowditch Trail, Western Head Road, and Duck Harbor Mountain Trail. Remember that biking is prohibited on designated hiking trails, so stick to the main road and approved biking paths.

Given its 'moderate to hard' difficulty rating, the Main Road loop is generally not recommended for absolute beginner mountain bikers. It requires good fitness and some experience with unpaved and potentially challenging terrain. If you're a beginner, consider gaining more experience on easier trails before tackling this loop, or be prepared for a significant challenge and potentially pushing your bike through some sections.

Isle au Haut maintains a small year-round community, offering a distinct remote island adventure. While it's not bustling with amenities, there are some limited options. It's best to plan ahead for food and water, as services are minimal. For accommodation, you might find a few local rentals, but it's crucial to book well in advance due to the island's remote nature and limited options.

Given the remote nature and potential difficulty, you should bring plenty of water, snacks, a basic bike repair kit (including a spare tube and pump), a first-aid kit, and appropriate layers of clothing for changing weather conditions. A helmet is essential. Since you're on an island, consider bringing insect repellent. Don't forget your camera for the stunning views!