Opened in December 1995, Welli Hilli Park is a resort complex located over 48.6 million square meters around Sulibong Peak in Hoengseong-gun, Gangwon-do. The park is located in a region that often experiences heavy snow, providing the perfect skiing environment. Welli Hilli Park offers state-of-the-art facilities including gondolas that are able to transport 20,000 skiers per hour, and an automatic snow-management system. Guests are assured of a pleasant experience thanks to the efforts of the resort's customer satisfaction team.

Welli Hilli Snow Park offers a total of 20 slopes, including seven internationally certified slopes. The snow park is especially popular among snowboarders and was the first ski resort in Asia to host the World Snowboard Championships in 2009. Snowboarders can use the large-scale half-pipe and fun park, while skiiers enjoy the mogul course. Outside of the winter ski season, guests can enjoy golfing at the public greens.