Mermaid Trail Run - 2026 | Woodside, CA, United States

About the Event

The Mermaid Trail Run - 2026 in Woodside, California on November 7th returns with a mix of distances for all runners. The event spans from Huddart Park, known for its towering redwoods and lush trails.
Race morning finds the park serene, with participants setting off under the glow of early light through winding paths lined by ancient trees. The atmosphere is calm yet charged with anticipation as runners prepare to explore the magical forest environment. Over 500 participants are expected this year, contributing significantly to Woodside's community spirit and supporting local charity efforts.
The course offers a variety of distances including 3 miles, 6 miles, half marathon, and even a six-hour challenge for those looking to test their endurance. The park’s firm yet slightly soft terrain ensures a smooth run despite the season's typical conditions.
Participants in the Sirena 6 Hour Individual & Relay will navigate three-mile loops within a designated time limit of six hours. This event promises an engaging experience with access to special aid stations and crew drop-off areas, stocked with nourishing food options like pancakes and quesadillas.
Weather on race day is expected to be mild, with temperatures ranging from 9°C to 17°C, and a humidity level of around 74%. The wind will average at about five miles per hour, providing a comfortable pace for runners. Sunshine duration averages seven hours and fifty-three minutes, while the UV index remains low.

3 Miles
4.8K • Start: 08:00:00 • Fee: $49.07

6 Hour Challenge (2 Person RELAY - Price per perso
6 Hours • Start: 08:00:00 • Fee: $49.07

6 Hour Challenge (Individual)
6 Hours • Start: 08:00:00 • Fee: $70.46

6 Miles
9.7K • Start: 08:00:00 • Fee: $54.42

9 Mile
14.5K • Start: 08:00:00 • Fee: $59.76

Half Marathon
21K • Start: 08:00:00 • Fee: $65.11

Mermaid Dash
Start: 08:00:00 • Fee: $18.04

Virtual Run
Start: 08:00:00 • Fee: $49.07

3 Miles | 4.8K | fee=$49.07
6 Hour Challenge (2 Person Relay - Price per person) | 6 Hours | fee=$49.07
6 Hour Challenge (Individual) | 6 Hours | fee=$70.46
6 Miles | 9.7K | fee=$54.42
9 Mile | 14.5K | fee=$59.76
Half Marathon | 21K | fee=$65.11
Mermaid Dash | fee=$18.04
Virtual Run | fee=$49.07
To register, visit https://raceroster.com/events/2026/112645/mermaid-trail-run-2026 and select your preferred distance or option. Early bird fees apply until October 31st.
Bibs will be available for pickup on Saturday, November 7th from 8:00 AM to 9:00 AM at the Woodside Community Center, located at 450 Laurelwood Road in Woodside. Bring a photo ID and proof of age if under 21 years old.
The start location is Huddart Park, 36500 El Camino Real, Woodside, CA 94062. The event welcomes runners aged 18 and above; youth below this age receive a 20% discount automatically applied during registration.
This race matters because it supports local community causes while providing an opportunity to run through the beautiful redwood forest in ideal weather conditions.

Races Offered

3 Miles

Nov 07, 2026

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Distance — 4.8K

terrain

Type — Others, Running

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08:00

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$49.07

6 Hour Challenge (2 Person RELAY - Price per perso

Nov 07, 2026

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Distance — 6 Hours

terrain

Type — Others, Running

timer

08:00

sell

$49.07

6 Hour Challenge (Individual)

Nov 07, 2026

straighten

Distance — 6 Hours

terrain

Type — Others, Running

timer

08:00

sell

$70.46

6 Miles

Nov 07, 2026

straighten

Distance — 9.7K

terrain

Type — Others, Running

timer

08:00

sell

$54.42

9 Mile

Nov 07, 2026

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Distance — 14.5K

terrain

Type — Others, Running

timer

08:00

sell

$59.76

Half Marathon

Nov 07, 2026

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Distance — 21K

terrain

Type — Others, Running

timer

08:00

sell

$65.11

Mermaid Dash

Nov 07, 2026

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Distance — Mermaid Dash

terrain

Type — Others, Running

timer

08:00

sell

$18.04

Virtual Run

Nov 07, 2026

straighten

Distance — Virtual Run

terrain

Type — Others, Running

timer

08:00

sell

$49.07

Weather History

These values represent the 3-year monthly averages for November in Woodside.

thermostat Temperature

9.0° / 17.2°

wb_sunny Feels like

7.2° / 15.3°

light_mode Avg sunshine hours

7h 53m

water_drop Avg rainfall

2.8 mm

ac_unit Avg snowfall

—

air Avg wind speed

5.8 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

74.1%

wb_twilight Sunrise

07:48

nightlight Sunset

17:58

About Woodside

Learn more about the host city, Woodside.

Woodside is a small town on the San Francisco Peninsula in California. It is considered one of the wealthiest towns in the United States, and is home to many celebrities and executives. Despite its small size, Woodside features many local attractions.