Central Mount Desert Island loop from Southwest Harbor

This challenging road cycling route is approximately 66 kilometers (41 miles) long with over 1,070 meters (3,000 feet) of elevation gain. For a cyclist with very good fitness, it generally takes around 3 hours and 17 minutes of active riding time to complete.

No, this route is classified as a difficult road ride and demands very good fitness due to its length and significant elevation gain. Beginners may find it overly challenging.

While the route starts from Southwest Harbor, specific parking information for cyclists is not detailed. However, Acadia National Park has various parking areas, and it's advisable to check the official National Park Service website for current parking regulations and availability in and around Southwest Harbor or other access points to the Park Loop Road.

The route offers diverse terrain. While much of it features well-paved surfaces, be prepared for some segments that may be unpaved and difficult, potentially requiring you to dismount. A significant portion includes the Park Loop Road, which is paved but can be winding and narrow. The route also incorporates sections of the historic Carriage Roads, which have crushed rock surfaces and offer a car-free experience.

The best times to cycle this route are typically spring and fall. During these seasons, the weather is generally cooler, and the park experiences fewer crowds than in peak summer. Fall offers stunning foliage. Always check for seasonal road closures, especially for sections of the Park Loop Road, which can affect accessibility.

This loop treats you to many of Acadia's iconic sights. You'll pass by serene lakes like Echo Lake, Jordan Pond, and Eagle Lake. You'll also be able to enjoy panoramic views, including a View of Bar Harbor and Mount Desert Island from Cadillac Mountain, and potentially other scenic points like Sand Beach, Thunder Hole, and Otter Cliff if the route incorporates those sections of the Park Loop Road.

Yes, this route blends sections of the paved Park Loop Road with Acadia's historic Carriage Roads. The Carriage Roads, built by John D. Rockefeller Jr., offer a unique car-free cycling experience on crushed rock surfaces, providing a serene contrast to the busier paved roads.

Dogs are generally allowed on the Carriage Roads and many trails in Acadia National Park, provided they are on a leash no longer than 6 feet. However, specific regulations may apply to certain sections of this road cycling route, especially if it traverses areas like Sand Beach or specific hiking trails. Always check the official Acadia National Park website for the most current pet policies.

Yes, Acadia National Park requires an entrance pass. These passes can be purchased online, at park visitor centers, or at various entrance stations. The funds from these passes help maintain the park's facilities and services. For current fees and purchase options, visit the official National Park Service website.

Given the route's difficulty and length, you should bring plenty of water, energy snacks, a repair kit (including spare tubes and a pump), appropriate cycling attire for varying weather, sun protection, and a helmet. A map or GPS device is also recommended, as cell service can be spotty in some areas of the park.

Yes, if your route includes sections of the Park Loop Road, it's best to avoid cycling between 10 AM and 4 PM, especially during peak season. This road can become very congested with vehicle traffic, and some areas have no shoulder, making it less safe and enjoyable for cyclists during these busy hours.