Sunday, August 26th, 2018

Registration now open!


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!