Get ready for an unforgettable weekend at the Donner Lake Triathlon, taking place on Sunday, July 27, 2025, in the picturesque Truckee, Nevada County. Organised by Big Blue Adventure, this event promises an exhilarating experience for athletes of all levels. Participants can choose from a variety of race distances including the Olympic Triathlon, Half Marathon, Duathlon, and Aquabike, making it the perfect event for both seasoned triathletes and newcomers alike.

The stunning backdrop of Donner Lake combined with the challenge of the course creates an atmosphere that is as inspiring as it is beautiful. This iconic California triathlon is not just a race; it’s a celebration of fitness, community, and the great outdoors. Join us for a day filled with excitement, camaraderie, and the thrill of competition at the Donner Lake Triathlon! Be sure to mark your calendars and prepare for an adventure you won’t want to miss!