From Hujiayuan Bus Terminal, walk along Yingkou Road to Hebei Road, and then walk along Yanhe North Road through Rainbow Bridge to Beitang to Hangu to Lutai.
You can take it at any bus stop on Yingkou Road or Hebei Road every half hour, but it doesn't exceed 6 o'clock.
Ticket price 10 yuan, the whole journey is about 1 hour.