Avenue of the Giants Marathon

The Avenue of the Giants Marathon is a scenic running event held in Humboldt Redwoods State Park, California, featuring a full marathon, half marathon, and 10K race. Celebrating its 53rd annual edition in 2025, the marathon course is USATF certified and serves as a Boston Qualifier. Runners navigate a mostly flat, paved route surrounded by towering old-growth redwoods, providing a unique and inspiring atmosphere.

The event emphasizes sustainability and is independently organized, free from corporate sponsorship. Participants receive medals upon completion, and awards are given to top finishers in various categories. Visit the organization's website for the most recent information.