Saturday, November 7th, 2026 3 Mile, 6 Mile, 9 Mile, Half Marathon, 6 Hour Challenge (Individual & Relay), Kids 1.5 Mile Dash & Virtual Run Run, hike or walk at Huddart Park in beautiful Woodside, CA. Towering redwoods, lush trails and the magical forest await.... SWAG Options: Sign up to get ALL the swag or you can customize your SWAG options during registration. Removing swag can save you up to $14. We are now offering the option to choose either a long or short sleeve shirt with your registration! *Note: Opting out of the various swag items during your registration will reduce your entry fee at checkout. Select: No Shirt - Save $8 Select: No Medal - Save $3 Select: No Necklace - Save $3 Sirena 6 Hour Individual & Relay We're excited to continue the SIRENA 6 Hour again this year! Participants in the Sirena 6 Hour will challenge themselves to run or hike as many 3 Mile loops as they can within the 6 hour time limit. Challenge yourself as an Individual or part of a 2 Person Relay Team. Participants will have access to a designated crew/drop bag area along the finish chute and will also have access to a special 6 Hour Aid Station stocked with all the fun food and snacks needed to fuel for 6 hours of fun! We're talking pancakes, quesadillas, melons, and more. Age Discounts:

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Distances

Marathon

9.0 mi

6.0 mi

3.0 mi