Features: enclosed by forests; pure and clean water; and various amusement facilities including a 20,000-sqm wave pool and glass water slides.
Location: Laodaohe Town, Kaifu District, Changsha
Opening hours: 10:00-21:00 (weekdays); 9:30-21:30 (weekends)
Service hotline: 0731-86450379
Ticket price: 168 yuan/person

Chinese source: official website of Happy Water World 

Related:

Xiangjiang Joy Town Amusement Park

Features: Kingdom of Ice and Snow on a mine, ice and snow sports, water activities; brand hotels, public parks, a shopping street, and a recreation square.
Location: Pingtang Subdistrict, Yuelu District, Changsha
Opening hours: 10:00-22:00
Service hotlines: 0731-81875555; 0731-81859589

Changsha Fantawild Oriental Heritage Theme Park

(Photo/official WeChat of Changsha Municipal People’s Government) 

Features: a combination of high-tech interactive experiences and Chinese culture; 11 high-tech indoor projects; and 34 outdoor amusement projects.
Location: Ningxiang City, Changsha
Opening hours: 9:30-17:30 (weekdays); 9:00-18:00 (weekends and holidays)
Service hotline: 400-166-0006
Ticket price: 320 yuan/person

Snow Kingdom of Three Bears

(Photo/official WeChat of Snow Kingdom of Three Bears) 

Features: 10,000-sqm ski field; primary and middle-level skier trails; advanced ski facilities; and ice sculptures exhibition.
Location: Tianxin District, Changsha
Opening hours: 9:00-17:00
Service hotline: 400-889-1811

Chinese source: voc.com.cn;  official website of Changsha Fantawild Oriental Heritage Theme Park,