Chinanews, Beijing, October 23 – The Well-off Life Magazine has conducted an online survey to find out the happiest cities in China, and the top-10 cities are Chengdu, Hangzhou, Qingdao, Dalian, Kunming, Suzhou, Guilin, Xiamen, Hong Kong and Dali.All the 10 cities have a very enjoyable ecoenviroment, and are hot tourist destinations. Living in these cities usually means no heavy pressures from work, environmental condition or price level. Besides, most of the 10 cities have highly efficient traffic systems.Beijing, Shanghai, Shenzhen and Guangzhou are the four most developed cities in China, but they are not necessarily the happiest ones, for living there one does have to sacrifice a lot of conveniences in life.