Lace up for an unforgettable challenge at the Cottontail 6 and 12 Hour race, set for April 18, 2026, in the stunning Carkeek Park in Seattle, WA. This isn't just a race; it's a "brutally beautiful" experience designed to test your limits and immerse you in the Pacific Northwest's natural splendor. The course features a dynamic 1.93-mile clockwise loop that boasts "steep stairs, rolling trails, gorgeous vistas," and abundant singletrack winding through lush green trees and glorious ferns, all while offering picturesque views of Puget Sound. With each loop packing 436 feet of vertical gain, you'll find a constant, rewarding challenge, making it excellent training for longer ultra-distances. Typical race day conditions in mid-April offer pleasant highs around 60F and lows near 43F, with a low 13% chance of precipitation, creating ideal running weather.

Beyond the demanding terrain, the Cottontail 6 and 12 Hour stands out for its festive and supportive atmosphere, attracting runners who often return year after year. The start and finish area, located beside Puget Sound, becomes a hub of encouragement and camaraderie. Aid stations are known for being exceptionally well-stocked, offering "awesome fuel" and a variety of homemade treats and ultra-fare, with volunteers providing enthusiastic support through every lap. Expect unique touches like handmade bibs, lap counts marked with star stickers, and even hidden Easter eggs on the course offering bonus raffle tickets.

What truly sets the Cottontail apart is its commitment to both community and conservation. As an Endless Trails fundraiser, proceeds from your registration directly support local trail work, education, and advocacy throughout the Northwest region. The event embraces a low-impact philosophy, minimizing waste with no paper products and sourcing aid and prizes from local businesses. Rather than traditional medals, participants receive "something awesome simply for showing up," and past winners have been celebrated with eccentric prizes like giant stuffed dragons or bright pink garden gnomes, reflecting the race's fun-loving spirit. New for 2026, a run club competition adds another layer of friendly rivalry, vying for a series-wide trophy.