The best MTB trails around Southwest Harbor

Mountain biking in Southwest Harbor primarily takes place on the historic carriage roads within Acadia National Park. These 45 miles of wide, smooth gravel paths offer scenic rides with stunning views of the sea, Somes Sound, and granite bridges. Traditional singletrack mountain biking trails are not permitted within Acadia National Park; riding is restricted to these carriage roads and the Park Loop Road.

This guide features 5 mountain bike routes around Southwest Harbor, ranging from easy to moderate difficulty. These routes are perfect for exploring the scenic carriage roads of Acadia National Park.

Yes, most of the routes in this guide are rated as easy. For example, the Jordan Pond Loop is an easy 15 km ride. Another great option is the Around-Mountain Carriage Road – Upper Hadlock Pond loop from Parkman Mountain, which is just under 14 km and also rated easy.

Yes, for a moderate challenge, consider the Aunt Betty Carriage Road loop from 18. This route covers over 22 km and offers a good workout while still enjoying the beautiful scenery of the carriage roads.

Yes, dogs are generally permitted on the carriage roads in Acadia National Park, which is where mountain biking is allowed. They must be kept on a leash no longer than 6 feet (2 meters) at all times. Always check current park regulations before your visit.

The carriage roads offer numerous scenic points. You can pass by beautiful granite bridges, enjoy views of Somes Sound, and see various natural features. Specific highlights include the Wooden Bridges — Jordan Pond Path and the serene Jordan Pond itself. You might also catch glimpses of mountain summits like Sargent Mountain Summit or Parkman Mountain Summit from the trails.

Yes, many of the mountain bike routes in this guide are loop trails, perfect for starting and ending at the same point. Examples include the Jordan Pond Loop and the Stone bridge loop from 18.

Parking for the carriage roads is available at various points around Acadia National Park. Popular access points near Southwest Harbor include the Hulls Cove Visitor Center, Eagle Lake, and Jordan Pond. Specific parking areas are often indicated on park maps and signage near the carriage road entrances.

The Island Explorer bus system operates seasonally on Mount Desert Island and is generally bike-friendly, with racks available. This can be a great way to access different sections of the carriage roads without needing to drive. Check the current Island Explorer schedule and bike policies for your visit dates.

The best time for mountain biking in Southwest Harbor, particularly on the Acadia National Park carriage roads, is typically from late spring through early fall (May to October). During these months, the weather is generally pleasant, and the park facilities are fully operational. Fall foliage can make for especially scenic rides.

Yes, bike rentals are available in Southwest Harbor and other towns on Mount Desert Island, such as Bar Harbor. Many shops offer a range of bikes suitable for the gravel carriage roads, including hybrid and mountain bikes.

The region is known for its unique geological features, including dramatic granite formations. You'll see these in the historic bridges along the carriage roads and the rocky coastlines. Keep an eye out for features like Bubble Rock at South Bubble, a glacial erratic, or the picturesque fjord of Somes Sound.