Tam Thanh Cave, a spiritual and scenic spot of Lang Son Friday, December 17, 2021 | 23:22:00 (VOVWORLD) - Tam Thanh is the biggest cave in the northern province of Lang Son city. The 400m long cave houses Tam Thanh Pagoda which dates back hundreds of years. Tag VOV VOVworld Tam thanh cave Lang Son province Tam thanh pagoda Feedback Submit Others Vietnam Military History Museum attracts thousands of visitors Cloud hunting on Ky Quan San mountain peak The making of fermented soybean paste in Hung Yen Da River turns plein air during flood season