Vietnam has an amazing and mysterious nature. Its impenetrable forests provide protection to rare species of animals like the Saola Pseudoryx nghetinhensis, a very shy bovid discovered in 1992 or, the Red-shanked Douc Langur Pygathrix nemaeus, an elusive primate with penetrating gaze and bright colors. There are only a few and difficult accesses to these forests full of surprises and biodiversity and two of the most interesting areas are Bach Ma and Cat Tien National Parks.