Have one free day in Guangzhou - 3 ladies together. One wants to shop at Shan Xi Lu (googled but can't find this place) and the other wants to go to Shamian Island. Will be staying at airport hotel, so travel by metro for full day in town and going back to hotel at night. Anyone heard of Shan Xi Lu shopping area? If not, any recommendations for shopping area. Is travelling by metro at night safe in Guangzhou? Any suggestions of places to visit or eat are most appreciated.