Nestled along the scenic shores of San Pablo Bay, China Camp State Park offers runners an unforgettable trail experience at the Peacock Gap Trail Run. This beloved race celebrates the park's rich history and stunning natural beauty with three challenging distances: a 10K, Half Marathon, and a grueling 30K. The course weaves through dense forests and over rolling hills, offering breathtaking views of Mount Tamalpais and San Francisco Bay throughout your run. Expect to encounter twisting single-track trails that climb steeply before descending into open meadows overlooking the water. The terrain is varied, with sections where runners can push their limits or take a more leisurely pace while enjoying the serene surroundings. Registration opens on December 5, 2026, starting at 7:30 AM for early check-in and bib pickup until 9:00 AM. Start times are staggered to minimize congestion; the Half Marathon and 30K begin promptly at 8:30 AM, followed by the 10K start at 9:00 AM. Aid stations along the route provide a wide array of essential supplies for endurance athletes, including energy gels from Gu, trail mix, pretzels, Oreos, and Skratch Labs hydration mixes. Volunteers ensure that runners have access to everything they need throughout their journey. Parking is available at Miwok Meadows on N. San Pedro Road; participants are encouraged to carpool for a more sustainable experience. This event attracts enthusiastic volunteers who play an integral role in making the race possible, from setup and check-in to course marshaling and post-race festivities. All volunteers receive free T-shirts made of high-performance tri-blend fabric, ensuring comfort during their day outdoors, as well as complimentary food and credits toward future Inside Trail Racing events. Finishers can look forward to custom medals with unique designs celebrating the race's logo, along with special awards for top overall male and female finishers in each distance. Age-group winners will also receive recognition across various categories from 13 years old up through senior competitors. To secure your shirt and size preference, register by November 21st, ensuring you get a piece of this high-quality race gear made specifically to enhance performance during rigorous workouts. The Peacock Gap Trail Run promises an immersive experience in one of California's most picturesque settings. Don't miss out on the opportunity to explore China Camp State Park through its trails and enjoy all that it has to offer runners, hikers, and nature enthusiasts alike. For more information or to register for this exciting event, visit www.insidetrail.com.
Races Offered
1/2 Marathon
Dec 05, 2026
straighten
Distance —
21.1K
terrain
Type —
Running
timer
08:30
sell
$90.00
30K
Dec 05, 2026
straighten
Distance —
30K
terrain
Type —
Running
timer
08:30
sell
$105.00
10K
Dec 05, 2026
straighten
Distance —
10K
terrain
Type —
Running
timer
09:00
sell
$75.00
Weather History
These values represent the 3-year monthly averages for December in San Rafael.
thermostatTemperature
7.1° / 13.5°
wb_sunnyFeels like
4.9° / 11.9°
light_mode
Avg sunshine hours
6h 13m
water_drop
Avg rainfall
5.5 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
7.3 km/h (Light breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Low (2.0)
humidity_mid
Humidity
87.3%
wb_twilight
Sunrise
08:18
nightlight
Sunset
17:52
About San Rafael
Learn more about the host city, San Rafael.
Historically home to one of California's original Spanish missions, San Rafael is now a mid-sized Bay Area commuter town with beautiful hills, peaceful nature, interesting architecture, and a bustling downtown area centered around 4th Street. San Rafael is the cultural and political center of Marin County, and offers its own set of attractions as well as easy access to other parts of the county.