hieunguyenpro (25)in #travel • 7 years agoSon Doong Cave - The World's Largest Cave in Vietnam!The first, you can see overview Phong Nha - Kẻ Bang at the pictuere at bellow: Vietnam's Phong Nha-Ke Bang National Park is home to the world's largest cave -- a place few…hieunguyenpro (25)in #life • 7 years agoAbout Ha Long Bay in VietnamHa Long Bay cruises are available at almost every hotel and travel agency in Vietnam. Halong Bay is an impressive geographical formation in northern Vietnam. It has over 1,900…