if from shangrila padong whats the best transpotation to yuyan garden or nanjing road in Shanghai?

Subway shall be the best choice.
To Yuyuan Garden, you can walk from your hotel to Lujiazui metro station to take subway line 2 to East Nanjing Road, where transfer to line 10 to get off at Yuyuan. Then get out from exit 3 and you can easily walk to the garden. To Nanjing Road, use subway line 2 for sure.