5th Annual Run By The Sea:

Sunday, August 27, 2017

Pre-registration closes Thursday, August 24.

Registrants August 8 and after are not guaranteed their chosen race shirt size. Pre-registrants are guaranteed a race shirt; Day-of registrations are not guaranteed a shirt.


Half Marathon: $80

12K Run: $50

4K Run/Walk: $40

A stunning coastal route in Wilder Ranch State Park.


A benefit for Bike Santa Cruz County: promoting active transportation by making Santa Cruz County a better place for bikes, through advocacy, education, and community engagement.


Run By The Sea is a gorgeous half marathon, 12K run, or 4K run/walk that meanders along the undeveloped coastline north of Santa Cruz. Most of the run is on a flat, packed dirt trail, and overlooks wild rocky shoreline. No other running event uses the trail, and with a legendary beach crossing, Run By the Sea is unique in every mile.

Lean more about the course  →


There are many ways to get involved in Run By The Sea (besides running or walking!), including volunteering and sponsoring.

See volunteer opportunities →

See sponsorship opportunities


Thank you to our past sponsors!