Shaoxing Metro Line 1 is offering 1-yuan (15 cents) ticket for passengers to travel from Fangquan Station to Guniangqiao Station from June 10 to July 9.
Local transportation authorities said the offer is to attract tourists to scenic spots along the line and encourage a low-carbon lifestyle.
He added that Shaoxing Metro Line 1 has been operated safely for 43 consecutive days since it opened to the public on April 49.
Shaoxing Metro Line 1 currently has 23 stations and includes a main line and a branch line. The main line runs from China Textile City Station to Fangquan Station. The branch line runs from Convention and Exhibition Center Station to Huangjiu Small Town Station.
Construction of the 34.1-kilometer metro line began in July 2017 and cost about 23.87 billion yuan, making it the largest infrastructure project in Shaoxing.