OCT East is a major entertainment and resort complex in Yantian, Shenzhen, China. It was constructed at a cost of CNY 3.5 billion and covers an area of nearly 9 km2. Construction started in 2004 and it was opened in 2007. It is divided into 3 theme parks, namely Knight Valley (大侠谷), Tea Stream Resort Valley (茶溪谷) and Wind Valley (云海谷) and features 8 hotels and a Buddhist Temple.