Lake Whatcom Triathlon

Enjoy an open-water swim in Lake Whatcom, ride the rolling hills along North Shore, and run the trails of Whatcom Falls Park. Featuring Olympic and sprint-distance triathlons, aquabike, and kids splash ‘n dash, all ages and levels are welcome! Lake Whatcom Triathlon is the host for the 2021 USA Triathlon Washington State Championships for High School and Age Group Athletes. Registration includes participation in guided course previews and weekly training groups leading up to the main event.