who said that the cold rice noodles in Caida Xiyuan are authentic? The food street you mentioned should be the snack street outside the West Garden of Caida University. Take a bus to Nanhu Campus of Caida University. What bus do you want to take first and transfer to Chashanliu at 538/591 (or Dongshantou at Minzu Avenue at 583/911)? When you get to Caida, find the west gate of Caida and go out. Or ask about Xiyuan directly, it's easy to find.