Trang An is an eco-tourist located in the "Trang An Scenic Landscape Complex - Tam Coc - Bich Dong" of the Ninh Binh province and Vietnam Government has vestige of special national importance. It is also known as the South stronghold of Hoa Lu ancient capital, including systems with old limestone mountains about 250 million years of geology, weathering over a long period by the transformation of the earth, the climate, the sea, degradation of their marine brought hundreds of valleys, caves, lakes dress. In these landscapes, there are many wetland ecosystems, forests and limestone monuments linked to the history of the Hoa Lu ancient capital.
