Chuckanut Drive and Interurban Trail Loop

The full loop is approximately 43.6 km (27 miles) long. While the exact duration depends on your cycling pace and stops, komoot estimates it takes around 3 hours and 28 minutes to complete this touring bicycle route.

The loop offers a diverse terrain. The South Bay Trail and Interurban Trail sections are largely flat, built on an old railbed, with about 89% paved surfaces and 11% firmly packed, double-track gravel. Chuckanut Drive (State Route 11), however, is known for its winding, hilly terrain with significant elevation changes, narrow lanes, and some stretches lacking shoulders. It combines shaded forest paths with exposed coastal roads.

You'll encounter stunning scenery throughout the loop. Highlights include the historic South Bay Trail, the charming Fairhaven Park Bridge, and the lush Arroyo Nature Reserve. There are also designated viewpoint pullouts along Chuckanut Drive offering panoramic views of Bellingham Bay, the San Juan Islands, and the Olympic Mountains.

The loop is enjoyable in many seasons, but spring and fall often offer pleasant temperatures and vibrant scenery. Spring brings lush greenery and the possibility of visiting the Skagit Valley Tulip Festival nearby. Summer is popular but can be warmer. Always check weather conditions before heading out, as Chuckanut Drive can be exposed.

The overall loop is rated as 'difficult' due to the significant elevation changes and shared road sections on Chuckanut Drive. While the Interurban Trail portion is relatively flat and suitable for all skill levels, the Chuckanut Drive section requires experience with hills, traffic, and narrow roads. Families or beginners might consider riding only the Interurban Trail or choosing a clockwise direction for more gradual climbs.

You can typically find parking in Bellingham's historic Fairhaven district, which provides easy access to the Interurban Trail. Larrabee State Park, located along Chuckanut Drive, also offers parking options and direct access to the route.

Yes, if you plan to park within Larrabee State Park, you will likely need a Discover Pass. This pass is required for vehicle access to state parks and other state recreation lands in Washington. Check the Washington State Parks website for current pass requirements and purchase options.

Generally, dogs are allowed on the Interurban Trail and in many areas of Larrabee State Park, but they must be kept on a leash. Always ensure you clean up after your pet. Specific rules may apply in certain areas, so look for signage.

Cyclists often choose to ride the loop counter-clockwise to experience steep climbs followed by long, gradual descents. Alternatively, riding clockwise offers more gradual climbs with steeper descents. Consider your fitness level and preference for climbing or descending when deciding your direction.

Yes, the route incorporates significant portions of the Interurban Trail and the South Bay Trail. It also passes through Larrabee State Park, which offers access to numerous hiking trails like the Fragrance Lake Trail, Lost Lake Trail, and Ridge Trail, ranging from easy to strenuous.

Yes, the loop connects urban greenways in Bellingham's historic Fairhaven, where you'll find various cafes, restaurants, and shops. Along Chuckanut Drive, there are also opportunities to explore art galleries and other local establishments, particularly in the small communities you pass through.