Question about Shanghai Sheshan National Holiday Resort

Hi! We would like to go at weekend to Sheshan Holiday Resort. We heard that this is very big and you must borrow a bicycle to go everywhere. (we would like to see Yuehu Sculpture Garden and the west sheshan park) How big is this? How much walk it's needed? Or how can you go to the top of the hill?
Could you help me? How should I do this?
Thanks.
Erika