Run by the Sea 2019

Sun October 27, 2019 Directions

Run by the Sea 12K

8:15AM PDT - 10:00AM PDT

Run by the Sea 4K

8:30AM PDT - 10:30AM PDT

Run by the Sea Half Marathon

8:00AM PDT - 10:30AM PDT

Run by the Sea returns to lovely Wilder Ranch State Park on Sunday, October 27th! This unique 12K run, 4K run/walk, or half marathon meanders along the gorgeous coastal bluffs of California's Central Coast in Santa Cruz and consists mostly of flat, packed dirt trails. Participants will enjoy scenic coastal views while passing along the bluffs, through a unique beach crossing (12K and half marathon only), and Wilder Ranch park trails. Get ready to take in the natural beauty of the Monterey Bay, the serene flats of Wilder Ranch's meadows, and maybe even catch a glimpse of some dolphins - no other race is quite like it!

Now in its seventh year, Run by the Sea is organized by and is a benefit for Bike Santa Cruz County. All event proceeds will directly support our work on promoting bicycling through advocacy, education programs, and community building events. Our goal is for people of all ages and abilities to feel comfortable using their bikes for daily trips. Find out more about Bike Santa Cruz County by visiting and

Register by October 4th for early-bird pricing and a guaranteed shirt in your size!

Wilder Ranch State Park
Race Website

Additional race information can be found at

Race Contact Info

If you have any questions about this race, click the button below.

Refer a friend for a discount!

Refer 3 or more participants and get a refund of up to $20.00! You'll be provided a unique link when you register that you can share with any friends or family that would like to participate.  Once three people use your referral link to register, your referral discount will be automatically credited back to your card as our way of saying thanks. Discounts are as follows

  • 4K - $10 back for referring 3 friends
  • 12K - $15 back
  • Half marathon - $20 back
4K Route
12K Route
Half marathon route
Runner bib packet pickup

Run by the Sea will feature pre-event packet pickup so that you don’t have to wait in line on the day of the race. We’ll be distributing runner packets at the following locations:


Wilder Ranch State Park


Like this page and invite your friends on Facebook.

We use cookies to offer you a better browsing experience. Read how we use cookies and how you can control them by visiting our Privacy Policy. If you continue to use this site, you consent to use all cookies.