Nhi Thanh Grotto
Situated in Nhi Thanh Street, approximately 1km from the Lang Son City, Nhi Thanh Grotto houses the Pagoda of Triple Regions (Buddhism, Taoism, Confucianism). The grotto was closely related to the celebrity Ngo Thi Si when he was the chief of province between 1777 and 1780. He gave, in a short span of time, a new look to Lang Son in term of politics, economy and national defense. Especially in the domain of culture, he had the merit to discover 8 beautiful landscapes of Lang country including Nhi Thanh Grotto. He hired workers to start the renovation of this grotto in 1779. The right side area, being on a relatively more elevated land and the configuration of terrain better, was chosen to be the place for the building of the Pagoda of Triple Regions (in honour of Confucianism, Taoism, Buddhism).
Being a natural cave, Nhi Thanh Grotto lies beneath the Pagoda of Triple Regions, with the depth of 600 meters. On the cliffs at the entrance are 20 inscriptions that are precious historical and literary documents, including autographs of famous scholars. The statue of scholar Ngo Thi Sy on the cliff engraved in 1779 is a precious work of art. The length of a corridor from front entrance to back entrance is over 500 metres with many beautiful and picturesque landscapes. Inscriptions can be seen today on grotto, which were engraved by famous personalities and poets over different epochs.
