Cao Bang is a province of northeastern Vietnam. The province has borders with Ha giang, Tuyen quang, Back an and Lang son provinces within Vietnam. Cao Bang has temperate climate. There are 4 seasons: spring, summer, autumn, winter. The average temperature is 25 – 28ºC in summer and 16 – 17ºC in winter. Snow sometimes falls in winter on high mountains such as Trung Khanh, Tra Linh.
Cao Bang is famous by Ban gioc waterfall,it probably is one of most beautiful waterfall in Vietnam, The best time to visit Cao Bang is maybe fall season. Because, weather is very cool this season.