Discover Vietnam’s layered history and remarkable landscapes on a 6-night / 7-day journey through Hanoi, Ninh Binh, Ha Long Bay, Da Nang and Hoi An. This compact Vietnam holiday package connects three World Heritage properties: Trang An Landscape Complex, Ha Long Bay – Cat Ba Archipelago and Hoi An Ancient Town. https://onlinetourcompany.com/trip/exploring-vietnams-unesco-heritage-sites-06-night-special/