Name: Big River Adventure
Start: 2026-05-30
End: 2026-05-30
Location: Mendocino, California

About the Event

Welcome to the 25th annual Big River Adventure!

Join us for a unique race experience where you can choose your adventure to run, swim, walk, or paddle your way through the scenic beauty of Mendocino County's Big River.

For the past 25 years, Cancer Resource Centers of Mendocino County has been bringing our community together for this special fundraising event. While the activities may change from year to year, our mission remains steadfast: to honor and remember those impacted by cancer, and to raise vital funds to support free services for individuals facing cancer in Mendocino County.

Starting at the Big River boat launch, participants will embark on a journey filled with stunning views and the shared goal of making a difference in the lives of others.

Don't miss out on this unforgettable adventure! Register now and be part of something truly meaningful.

To keep this family-friendly event affordable and accessible to our community, we will not be providing t-shirts this year.

Here is a link to a trail map

• 5k runners will run east on the haul road to the 5k turn around.

• 10k runners dash east on the haul road to the 10K turn around (10K map).

• 5k "Fun" Walkers will follow the 5k runners route.

• Kiddie run will begin at the boat launch

These values represent the 3-year monthly averages for May in Mendocino.

Temp (°C)

Feels Like (°C)

thermostat 5.0° / 19.3°

wb_sunny 2.7° / 16.2°

Wind (km/h)

Humidity (%)

air 8.0 /

water_drop 72.5%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 5.0° / 19.3°

wb_sunny 2.7° / 16.2°

air 8.0 km/h

water_drop 72.5%

About Mendocino

A favorite weekend getaway for Northern California Bay Area residents, the village of Mendocino is older than both the county and state to which it belongs, having lent its name to the former and further still to the combined coastal watersheds that occupy the nearly 200 miles between the mouths of the Eel and Russian Rivers, known far and wide as the Mendocino Coast. The town has long been a haven for artists, and is famous for its art galleries as well as its restaurants and trendy shops. It is smaller and more "refined" than its blue collar neighbor to the North, Fort Bragg.