Muir Woods Marathon, Half Marathon & 7-Mile

Saturday, October 24, 2020 • Stinson Beach, CA • Course Map

Note: Due to the ongoing COVID-19 pandemic, this race has been rescheduled to run simultaneously with the Stinson Beach Half Marathon.

Challenging hills, paired with stunning views of both the Stinson Beach coastline and the immense, dramatic trees and landscapes of Muir Woods National Monument, await runners at the Muir Woods Marathon, Half Marathon and 7-Mile run, which marks its 31st annual running but makes just its 9th annual running with the 13.1-mile distance this year.

Run by Enviro-Sports, a Stinson Beach, Calif.-based race management company that stages events just like this one all around the San Francisco Bay Area and around Northern California, the Muir Woods race is a smaller one, drawing just a few hundred runners each year.

At the race, runners will follow an out-and-back course that starts and finishes at the Stinson Beach parking lot just off Marine Way and Highway 1. From there, they’ll make their way along roads for the first stretch, and then head onto the trails that lead into Muir Woods National Monument, along the Dipsea Trail and the Ravine Canyon Trail, as they make their way into the place where scenes from 1983’s Return of the Jedi were filmed.

Organizers say that “from the word ‘Go,’ you’ll be heading up” — and they’re right. The course rises more than 1,100 feet in the first three miles, as runners climb through the old-growth redwood forests of Muir Woods, march up both rock and wooden staircases and even climb a wooden ladder from one trail to the next.

Waterfalls, creeks and streams abound inside the park along the trails, and runners will have plenty of scenery to take their minds off the difficulty of the race as they’re heading up and down the trails.

And down the trails go between miles 3 and 5, giving back those 1,100 feet of elevation by the time runners reach the mid-way point of the race. That stretch turns into a much longer and more gradual uphill in the second half, as runners are heading along the Ben Johnson, Camp Eastwood and finally the Dipsea Trail on the way back into the starting line for the race finish.

Scheduled starting time for the race is 8:00 AM, and runners will have 6.5 hours to complete the race. Orange ribbons will be placed on the trails to keep runners on the race course, and no audio devices will be allowed on race day.

Race Weather & Climate

Nestled along the Northern California shoreline of Bolinas Bay, about 15 miles from Sausalito and roughly 24 miles northwest of downtown San Francisco, Stinson Beach typically sees its wettest weather of the year in October, which has brought record temperatures here as low as 26°F (in 1954) and as high as 87°F (in 1955).

On race day (Oct. 24), the average low is 48ºF and the average high is 70ºF.

Past Results

Course Map

See the race route map for the Muir Woods Half Marathon here.

Starting Time

7:00 AM


  • $50 – $60 for the half marathon
  • $60 – $80 for the full marathon
  • $40 – $50 for the 7-mile


To reserve your spot in the 2020 running of Stinson Beach’s Muir Woods Marathon, Half Marathon or 7-Mile run, register online at the event website here.

Official Race Website

Facebook Conversations

Ever run in the Muir Woods Half Marathon? Share your impressions here, or post your review in the Comments below.

See more races in: October, California

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