A postal card comes with entry ticket from Luzhai Xiangqiao Limestone Gelogical Park, Rongshui (鹿寨香桥岩溶国家地质公园) in Guangxi (广西). The ID no. is 13-450000-11-0006-008. Thanks Lingxiao.
A 540 Yuan scenery stamp (98-26, 2-2) was used to up-rate this card that comes with a 80 Fen imprint Year of the Horse stamp. It was cancelled with postmark of Nanning Pingxin (Tongqu) 4 or "那宁 平信（筒取）4" on 4.5.2016