How long does it take from downtown Xiamen to Yunshuiyao by bus?

Two and a half hours. According to Baidu map, it takes two and a half hours to get to Yunshuiyao by bus in Xiamen. Xiamen, referred to as "Xiamen" or "Heron", also known as Ludao, is a sub-provincial city in Fujian Province, a city with separate plans, a China Special Economic Zone approved by the State Council, an important central city, port and scenic tourist city in the southeast coast.