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 Son Doong Cave named among world’s 10 best: UK Time Out Peaceful Ta Van Chu Plateau adorned with white plum flowers Grilled pork patties – a popular Vietnamese dish Business Insider suggests best street food spots in Hanoi that Michelin Guide overlooked