(VOVWORLD) - The annual program entitled “Travelling across the heritage land of the Hoang Su Phi terraced fields” has opened in Hoang Su Phi district, Ha Giang province
(VOVWORLD) - A travel program was launched on Wednesday to promote tourism in six northern provinces: Cao Bang, Bac Kan, Lang Son, Thai Nguyen, Tuyen Quang, and Ha Giang