Sky Forest Trail Walking Festival (Haneulsupgil Walking Festival) is a family-friendly forest festival held along the Sky Forest Trail at an altitude of 1,300 meters. Visitors can explore the area’s rich natural environment, including native trees, wildflowers, insects, and various plant species, making it an especially enjoyable experience for children and families. The festival features well-maintained walking trails converted from former coal transport routes, offering safe trekking courses suitable for participants of all ages, along with forest-themed experiential programs. Surrounded by pristine nature, the festival provides a relaxing opportunity to unwind and enjoy healing time outdoors.