Prepare for a thrilling endurance challenge and a festive Halloween celebration at the Thriller Lake Endurance Runs on October 24, 2026, in Dacula, GA. This unique event, held at Little Mulberry Park, combines the grit of timed ultra-running with a lively, family-friendly Halloween atmosphere. Runners can choose their adventure from 12-hour, 6-hour, or 3-hour timed loops, or opt for a single 2.2-mile fun run.

The 2.2-mile course is a paved path that encircles Miller Lake, meandering through the scenic surrounding woods and the Karina Miller nature preserve. With approximately 70 feet of elevation gain and loss per loop, the route offers a manageable yet consistent challenge for participants. As the sun begins to set, timed race participants will experience the "eerie feeling" of running into dusk and dark, with headlamps being a required piece of gear. Typical race day conditions in late October in Dacula offer pleasant running weather, with highs around 70°F and lows around 49°F, and a minimal 12% chance of precipitation.

What truly sets Thriller Lake Endurance Runs apart is its Halloween spirit. Costumes are highly encouraged for all participants, transforming the event into a vibrant running party complete with music, food, and engaging trick-or-treat stations along the course for the 2.2-mile fun run. The start/finish area, conveniently located by the lake at Little Mulberry Park's Hog Mountain Entrance, serves as a well-stocked main aid station with typical fare and water, alongside a halfway water stop on the loop. Runners can also set up personal aid stations in the ample space available, and PERC Coffee is brewed on-site to keep everyone energized. This event is celebrated for its fun course and outgoing runners, fostering a positive community experience for all ages.