Lunatic Loop 6/12 hour run

Get ready for a unique, grassroots endurance test: San Diego Ultra Running Friends (SURF) invites runners to cover as many laps as possible over 6 or 12 hours on a sweet singletrack loop. Set in the foothills near Mt. Woodson, this race offers a rugged, fun, high-vert experience that rewards persistence and pacing as much as speed. The loop format means you’ll learn terrain, fine-tune strategy mid-race, and stay close to support.