Wanda Harbin (Indoor) is a massive indoor ski resort located in Harbin, China. It boasts six ski slopes up to 500m long, including some of the steepest indoor slopes ever built. The resort can accommodate over 3,000 skiers and snowboarders and offers a range of amenities, including a reception service area and snow sports facilities. With a floor area of 80,000m², it is considered the largest indoor ski resort in the world.