South West University from Chongqing to Dazu Rock Carvings

Dear all, I think that in 26 nov i will be in South West University from Chongqing that is located outside of Chongqing (I don't know yet where, but probably in Beibei). So please help me with some information regarding the visinting of Dazu rock carving from this place. It is possible to tell me if there are some buses from SWUC? How many hours will be from that place to Dazu. Thank you very much.