The Summer Trail Fest Ultra and Half Marathon, known for its unique blend of challenge and camaraderie, invites participants to earn their exceptional 2024 WTF (Winter Trail Fest) race swag by conquering the trails at Yankee Springs, Michigan. This event is designed to test your endurance with a winter trail half marathon and 5-mile race that may include a river crossing, promising some of the most demanding WTF conditions imaginable. The event emphasizes a spirit of resilience and adventure, offering an afternoon start to allow participants to savor the morning before embarking on their trail-running journey.