Caveman Challenge at Waterloo Lake
Denison, United States • 11 Oct 2025
The Caveman Challenge at Waterloo Lake in Denison, TX, is an inaugural trail running event offering multiple distances including 50K, marathon, half marathon, 10K, 5K, and a fun run/lake walk. The course features a rugged trail with dirt, rocks, roots, and scenic views overlooking Waterloo Lake. A unique highlight of the race is a cave located mid-course, adding an adventurous element to the run. The event encourages participants to tap into their endurance and enjoy the natural terrain and surroundings, making it a challenging and scenic outdoor experience for trail runners of various levels. Visit the organization's website for the most recent information.