Answered by Marcos from Denmark | Jan. 28, 2015 00:25
Hey, you must refer to Changbai Mountain, right?
You can take bus no. 55 from the west station to Kuanping Bridge, and then transfer to subway line 3 to CC Railway Station. There Huanghe Road Bus Station is located 500 yards to the south of the railway station. You can take bus to Erdaobaihe (the mountain is located in the Erdaobaihe Town) from the bus station. 2 buses are available at 08:00 and 17:00. The ticket fare is CNY114 and it take about 6 hours to reach the destination. The lake is located inside the mountain area. You may have to spend one night there, or the time would be too tight.