Mash & Dash is a coastal running event in Long Beach, offering a relaxed atmosphere for participants to enjoy a scenic out-and-back course along the beach path. The event welcomes runners and walkers, with safety emphasized as the path remains open to the public. Support includes marked routes, water stations, and restrooms. Participants receive race bibs for timing and photos, with gear check available at the registration tent. Awards are given to the top male and female finishers in each category, and race results and photos are shared after the event.