Vietnam Tour Phong Nha Cave
The 14 grottoes of Phong Nha , 50km north-west of Dong Hoi and accessible by boat from Son Trach, are best visited on an organised tour from Dong Hoi. Phong Nha cave is remarkable for its thousands of metres of passageways lined with a great variety of stalactites and stalagmites. The main tunnel is 1451 [...]
