Nestled along the shores of Lake Washington, Magnuson Park hosts the Magnuson Series, a monthly medley of running and walking events designed for all skill levels. Each series includes a 5k and a 10k run and walk, as well as a 15k run and a 400-meter dash for kids. In addition, attendees can often participant in marathons, duathlons, and even enroll their pups in doggie dashes. Rather than challenge repeat runners with new courses, the series keeps its same courses every month so racers can measure their improvement. Proceeds from each event go toward the non-profit Club Northwest, as well as various charities dedicated to preserving native plant habitats and green spaces.