Cadillac Mountain & Otter Cliffs loop

This loop is considered a difficult touring bicycle ride, demanding very good fitness. The ascent to Cadillac Mountain is particularly challenging with steep grades, often described as a 'rite of passage' for experienced cyclists.

The route primarily uses the paved Park Loop Road, known for its immaculate tarmac. However, some sections may be unpaved. It also incorporates Acadia's historic Carriage Roads, which are crushed rock surfaces closed to motor vehicles, offering varied terrain.

You'll pass several iconic landmarks. Highlights include the summit and overlook of Cadillac Mountain, the dramatic Otter Cliffs, and Thunder Hole. You'll also see Eagle Lake and the Jordan Pond Gatehouse.

The Park Loop Road is typically open from mid-April through November. For cycling, late spring and early fall often offer pleasant temperatures and beautiful scenery. Be aware that during peak summer hours (10 am to 4 pm), the Park Loop Road can be congested, making cycling less enjoyable.

Yes, Acadia National Park requires an entrance pass. You can purchase passes online or at various locations within the park. For detailed information on fees and where to buy passes, visit the official NPS website: nps.gov.

Dogs are generally permitted on the Park Loop Road and Carriage Roads in Acadia National Park, provided they are on a leash no longer than 6 feet (2 meters). Always clean up after your pet.

Parking is available at various points along the Park Loop Road and near popular attractions. However, parking lots can fill up quickly, especially during peak season. Consider arriving early or using the park's free Island Explorer shuttle bus, which can accommodate bicycles on some routes.

The route is approximately 51.6 kilometers (32 miles) long with significant elevation gain. For an experienced touring cyclist, it typically takes around 3 hours and 40 minutes of active cycling time, but allow extra time for stops at viewpoints and highlights.

Yes, the route intersects with several other paths. Notably, it utilizes sections of the Eagle Lake Carriage Road and the Jordan Pond Path, offering connections to Acadia's extensive network of car-free Carriage Roads.

A large portion of the Park Loop Road is one-way, which can create a 'default bike lane' and enhance the cycling experience. However, it is winding and narrow in some sections with no shoulder. It can also be congested, so cycling during peak hours (10 am to 4 pm) is generally not advised for a more relaxed ride.

You'll be treated to spectacularly beautiful and diverse scenery. Expect lush pine forests, rugged rocky coastlines, picturesque granite mountains, and views of lakes and ponds like Eagle Lake. From the summit of Cadillac Mountain, you'll get panoramic views of Frenchman Bay and Bar Harbor.