How far is Shanghai Hongkang Garden from No.686 Wuzhong Road?

It's a little over 6 kilometers by bus.

836/88 - 700/757

Come out from the south gate of the community, cross Pingtang Road eastward along Xianxia West Road, take bus No.836 (direction of Xujiahui) or No.88 (direction of Zhongshan Park subway station) at Jianhe Road Station of Xianxia West Road, and get off at Shuicheng Road Station of Xianxia Road. After getting off the bus, go straight to the intersection of Shuicheng Road, turn left and cross the road. Go a little north along Shuicheng Road and take No.700 (in the direction of Song Xin Xincun) or No.757 (Xianxia Road Station of Shuicheng Road).

757 is more circuitous than 700.