Robinson Point Lighthouse via Main & Park Road loop

Isle au Haut is accessible only by a passenger-only ferry from Stonington, Maine. The ferry can transport bicycles for an additional fee. Private automobiles are not permitted on the island, making the ferry the primary mode of access for cyclists.

The loop features a mix of paved and unpaved roads. While there are about five miles of paved sections, a significant portion consists of rough, unpaved terrain, including some 'cobbled road' and segments that may require dismounting and pushing your bike. This makes it more challenging than a typical road cycling route.

Due to the rough, unpaved sections and 'cobbled road' segments, a traditional road bike with narrow tires would likely struggle. Mountain bikes or gravel bikes are generally recommended for the unpaved parts of the island to ensure a more comfortable and manageable ride.

While Komoot rates this route as 'easy' for racebike, the varied terrain with significant unpaved sections and considerable elevation changes (up to 1500 feet of gain on the island's loops) means it requires at least 'good fitness' and can be quite demanding. Be prepared for hills that will make you 'perspire in the mid-day warmth'.

The loop offers stunning coastal scenery, rugged coastlines, remote coves, and views of Long Pond. A key highlight is the historic Robinson Point Lighthouse, a brick tower built in 1907. You'll also pass by the Isle au Haut Ferry landing, and enjoy views across Penobscot Bay.

The island offers a distinct, quieter experience compared to more crowded areas of Acadia National Park. While specific seasonal recommendations aren't provided, visiting during the shoulder seasons (late spring or early fall) might offer pleasant weather and fewer visitors, enhancing the remote tranquility.

Amenities on Isle au Haut are very limited. There is a small store and post office located near the town landing. Cyclists are advised to be self-sufficient and bring all necessary supplies, including water and snacks, for their ride.

Acadia National Park generally allows leashed dogs on most trails. However, specific regulations for Isle au Haut and its ferry service should be verified. It's always best to check the official Acadia National Park website for the most current pet policies before your visit.

As part of Acadia National Park, standard park regulations apply. While there isn't a specific entrance fee for Isle au Haut itself, general park passes may be required for other areas of Acadia. Always stay on designated roads and trails, and be mindful of wildlife and other visitors. Check the official NPS website for the latest information on permits and regulations.

Yes, the route also passes through sections of the Duck Harbor Trail, Ebens Head Trail, Median Ridge Trail, Head Harbor Trail, Goat Trail, Long Pond Trail, Skolnikoff Shores, Nat Merchant Trail, Old Cove Road, and Bowditch Trail.

Given the island's remote nature and limited amenities, it's crucial to plan your ferry schedule carefully and arrive prepared with all necessary supplies. Consider bringing a sturdy bike suitable for varied terrain, and be aware that the island offers a truly off-the-beaten-path experience within Acadia National Park.