Is there any Free tourist bus running in Kunming city area?

As I know there is no free tourist bus, but I know there is a downtown sightseeing bus line 1 in service in the city. The bus fare is CNY20 per person, and the bus hop-up points are Fude Jiameng Flower Market, Yinyuan Community, International Convention and Exhibition Center, KM Railway Station, Jinmafang, Nanping Street, Wenmiao Temple, South Cuihu Road, Yunnan University, Baihui Shopping Mall, Art theater, Dongfeng Square. The bus runs at an interval of 30 mins from 08:30 to 17:30. You can get on and off at any spots just with one ticket.