Welli Hilli Park, formerly known as Hyundai Sungwoo Resort, is a ski resort in Hoengseong, South Korea. The resort offers a range of winter activities, including skiing on 20 slopes, a snow park, and a cable car. In the summer, visitors can enjoy hiking trails, pools, and waterslides. The resort has undergone rebranding and is now operated by Shinan Group. It features a vast space of 2 million pyeong and offers panoramic views of nature across four seasons.