Welli Hilli Park (Korean: 웰리힐리파크), formerly known as Hyundai Sungwoo Resort is a ski resort in Hoengseong, South Korea.

The resort was acquired by Shinan Group in 2011 and took the current name in 2012.

The top of the resort is Suri-bong, a peak at 896 metres (2,940 ft) above sea level.

Across the nearby Dunnae Tunnel, another ski resort, Phoenix Pyeongchang is located.

In 2018, while human athletes were competing in the 2018 Winter Olympics in Pyeongchang, nearby Welli Hilli Park hosted a skiing event for robots, competing for a $10,000 prize.