Halloween Havoc Half Marathon - Fountain Valley, CA

The Halloween Havoc Half Marathon in Fountain Valley, CA, is a festive running event held at Mile Square Park. Alongside the half marathon, participants can choose to run 5K or 10K distances. The course is a looped route starting and finishing at the same location, featuring well-marked paths with two water stations and restrooms.

The event embraces a spooky Halloween theme, encouraging runners to wear costumes and enjoy a celebratory finish line with candy, music, and surprises. Parking is available for a fee, and awards are given to the top male and female finishers in each distance. The race promotes a fun, low-pressure atmosphere suitable for all levels. Visit the organization's website for the most recent information.