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Waiting at the Stinson Beach start line will be the only time you spend at sea level during this challenging trail run. From the word "Go" you'll be heading, up, up and away into the thick wooded trails of Muir Woods. You'll follow the legendary Dipsea trail to Steep Ravine, where you'll climb a wooden ladder, march up natural rock and wooden staircases and scramble under tree trunks. Along the way, enjoy the sounds of babbling brooks and waterfalls. Drink in the fresh smell of the towering redwoods and oaks that surround you. Your summit will be rewarded with panoramic vistas as you begin your descent back into Stinson Beach. The event is limited to 300 participants so don't wait too long to register! 

Registration fees

Half Marathon - Adult

Price changes in 2 months 17 days
  • (Age 18 and over)

    1. $50.00
      Now registering Feb 12 – Oct 6
      Register
    2. $60.00
      Oct 7 – Oct 25
    3. $70.00
      Oct 26 – Oct 26

7 Mile - Adult

Price changes in 2 months 17 days
  • (Age 18 and over)

    1. $40.00
      Now registering Feb 12 – Oct 6
      Register
    2. $50.00
      Oct 7 – Oct 25
    3. $60.00
      Oct 26 – Oct 26

Half Marathon - Youth

Price changes in 3 months 6 days
  • (Age 17 and under)

    1. $10.00
      Now registering Feb 12 – Oct 25
      Register
    2. $20.00
      Oct 26 – Oct 26

7 Mile - Youth

Price changes in 3 months 6 days
  • (Age 17 and under)

    1. $10.00
      Now registering Feb 12 – Oct 25
      Register
    2. $20.00
      Oct 26 – Oct 26

Course Map & Elevation Profile

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COURSE CUT-OFF TIME: 3 HOURS (13:45min/mile pace for half marathoners). Hikers/Walkers are welcome to participate in the 7 Mile distance.

Additional Details

COURSE MARKINGS: The course will be marked with orange ribbon. The 7 Milers will turn at the first aid station. The half marathoners will continue to do a loop.

AID STATIONS: Aid Stations at miles 3.8, 7.5, 10.5. We highly recommend that you carry water.

INCENTIVES: T-Shirts for all participants. Rubber chicken to the first place overall male & female in each distance. Personalized award ribbons to the top three finishers, male and female, in each age group for all distances which will be mailed out a few weeks after the race. Two pairs of Merrell shoes raffled off to two lucky runners at the race.

BIB NUMBERS: Bib numbers will be mailed out to participants beginning two weeks before the event. If you do NOT receive a bib prior to race day, you will pick one up on race day morning. If you did not supply a valid mailing address when you registered, or if your mailing address has changed, please e-mail us at info@envirosports.com.

PARKING: is available at Stinson Beach Park.

DRIVING DIRECTIONS: Google Maps Link to Park Entrance.

CANCELLATIONS: Registrations are non-refundable and non-transferable. If you email us by September 26, you may receive a rollover credit (the amount you paid minus a $10 fee) to use toward any future Enviro-Sports race.

HEADPHONES POLICY: Since parts of this race include very narrow trails with steep drop-offs along the course, it is imperative that runners can hear each other in order to pass safely, even if they are running at a slow speed. For safety reasons (and for the enjoyment of your fellow runners) headphones (and any other audio devices) are NOT allowed. 

Event Partners

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Event Schedule

  • October 26 7:00 AM PDT - Athlete Check-In

Contact Information

Event Location

Stinson Beach Parking Lot, Stinson Beach, CA, United States

Click here to view map