Vietnam has well over 60.000 square kilometres of exposed karst, most of that being located in the north of the country. One of the most important areas is the north-western Bacbo region. This region extends from the border with China to the seacoast of Bacbo gulf in the Southeast over a length of about 400 km and a width ranging from 10 km to 40 km. The deepest cave in Vietnam and Southeast Asia is Cong Nuoc, -600m deep and located in Lai Chau province.

 Detailed cave descriptions per explored area: (updated till 2002 expedition)

Area 1  Not available yet	Area 2  Nam Khum	Area 3  Bom Bay	Area 4  Ban Thong	Area 5  Ban Bon
Area 6  Ban Phe	Area 7  Mai Son	Area 8  Not available yet	Area 9  Phong Lai	Area 10  Pu Nhung
Area 11  Chieng Ban	Area 12  Sang Nhe	Area 13  Tua Thang	Area 14  Tua Phinh	Area 15  Huoi So
Area 16  Quynh Nhai	Area 17  Muong Trai	Area 18  Sung Phai	Area 19  Lan Nhi Thang	Area 20  Tam Duong
Area 21  Ban Hon	Area 22  Bin Lu	Area 23  Nung Nang	Area 24  Nam Loong	Area 25  Chieu Sai Pin
Area 26  Sin Chai	Area 27  Ban Giang	Area 28 Muong Xo	Area 29 Phan Xui Lin	Area 30 Ta Ngao
Area 31 Tan Lac	Area 32 Ba Be	Area 33 Dong Van	Area 34 Pho Bang	Area 35 Meo Vac N
Area 36  Meo Vac E	Area 37 Meo Vac W	Area 38 Yen Minh N
Area xx  Moc Chau	Area xy  Nam Phe

This picture gives an overview of the kast areas in Vietnam.

We worked in the provinces of Lai Chau, Son La, Ha Giang and Cao Bang

Vietnamese entertainment in California: Miss Vietnam, Vietnamese popsongs, ...
Listen to some modern Vietnamese music