Road Runner Sports has three locations in San Diego County (San Diego, Carlsbad, and Solana Beach). Throughout the year, Road Runner Sports hosts free events that include Adventure Runs, Running Clubs, Sunday Morning Yoga, and boot camps offered through Gut Check Fitness, Evolve Fitness and Nutrition, and Spartan. You can typically register for these events through Eventbrite or just drop in on the day of the event. Most events include a post-workout raffle and or food and beverages.
Check them out in the Eventbrite link below or find upcoming events on their Facebook page.