Cat Tien National Park
Cat Tien National Park is located around 150 kmb (2-4 hours) away from HCMC. It is a protected area, its conservation project is operated by WWF. Some of the species that live in the park (though I didn't get to see them) include the Javan Rhinoceros, Siamese crocodile, and many different types of monkeys. The main functions of the park includes: conserve and rehabilitate nature, provide research opportunities for national and international scientists, act as a tourist destination, and preserve the watershed of Tri An Reservoir.
A very interesting question was asked during my visit: Species vs. Poverty - space for people to live, or for animals to live? As a result of its conservation project, ethnic minority groups that once resided within the park have been moved as part of a resettlement project.
There are now facilities set up for visitors including lodges, campsites, a restaurant. There are also trails available to walk around in the rainforest.