End point: National Library Ancient Books Museum
Route 1: From Wangjing Village, take bus No.538 (Sunhe East Station-Beichen East Road Bus Station), change at Datun South to bus No.0/24 (tram), get on (Datun East-Xisiding Street) and arrive at Beihai. About 24.78 kilometers.
Line 2: Take bus No.909 (Qianweigou-Tujing Village West Exit) from Wangjing Park, change to bus No.5 (Deshengmen-Caihuying Bridge) at Deshengmen, and arrive at Beihai. About 24.48 kilometers.
Route 3: Take bus No.988 (Maquanying-Caihuying Bridge West) from Dawangjing, transfer to bus No.420 (Wangjing North Road East-Beijing Station East) at Dongsi Road East (Hongmiao Road East-Baiwanzhuang West) and transfer to 10 1 road (tram) to reach Beihai.
Line 4: Take bus No.418 from Wangjing Park (Jinzhan-Dongzhimen Hub Station), then transfer to bus No.41/kloc-0 at Tayuan Village (Liu Fang Station-Tianqiao), and transfer to1kloc-0 at Chaonei Street (east of Hongmiao intersection).