Loop The Lagoon is a family-focused fun run held annually in April at Lagoon Valley Park in Vacaville, California. The main race-day area is located on Pena Adobe Road within the park. The event features a 5K run/walk, a 10K Tower Challenge, a 2-mile untimed walk, and two kids’ fun runs, catering to runners, walkers, children, and families, not exclusively competitive racers.
The 5K and 10K races begin first, with participants organized by pace into marked groups before the start. All participants receive a medal. Early registrants are also given a Loop The Lagoon tech hat. The event includes community booths, music, and a kids zone with a petting zoo. This race is organized by a collaboration between the Vacaville Public Education Foundation and Fleet Feet Vacaville, with proceeds supporting children and schools in Vacaville.