not free. According to the official website of Taihang Happy Valley, tickets are unavoidable. Changzhi Taihang Happy Valley is located near Provincial Highway 325, Huguan County, Changzhi City, Shanxi Province, and the ticket price is currently 157 yuan. At present, the hottest scene in Happy Valley Scenic Area may belong to the water world, such as rainbow speed skating, tsunami pool, wave-making pool and super horn. People who play these projects are scrambling to enjoy each other, and the sound of huge waves and screams come and go, and a feeling of being cold and penetrating is all over the body, which is extremely comfortable.