Deception Pass Half Marathon
Blennerhassett, United States • 4 Apr 2026
Deception Pass Half Marathon & 10K
These trail races take place in Deception Pass State Park, a coastal park that separates Whidbey and Fidalgo Islands in northern Puget Sound. Both courses start and finish at the East Cranberry Lake Picnic Area and follow low-traffic paved park roads for about 0.75 mile before moving onto trails. The half marathon crosses the historic Deception Pass Bridge twice; the bridge sits about 180 feet above the water. Terrain varies from sea level to bluff-top sections and includes single-track trails that are sometimes rocky or rooty. Hills are generally short but can be steep.
Distances:
- 13.1 miles, 2,100 ft elevation gain, 2 aid stations
- 10K, 1,100 ft elevation gain, 1 aid station
- The Double 19.3 miles, 3,300 ft elevation gain, 3 aid stations
The 10K is a loop on the south side of the Deception Pass Bridge. The half marathon begins on the 10K loop, then crosses the bridge and continues to Rosario Head, Lighthouse Point and Lottie Point trails before returning to the final portion of the 10K loop. Aid stations provide water, Nuun electrolyte drink, peanut butter and jelly sandwiches, fresh fruit, chips, pickles, cookies or candy, some gels, first aid supplies and feminine hygiene products. Runners must wear their bib visibly for tracking.
Parking in the park requires a Discover Pass. There is no overnight parking or camping at the start/finish area; camping is available elsewhere in Deception Pass State Park. Visit the organization's website for the most recent information.