Right after the zoo's main entrance, turn left.
Treetops Trail is actually an elevated wooden path some metres above the ground for a great thematic view of a typical rainforest scene from high above.
The first animal you will see is the golden pheasant which has a striking gold colour and patches of red, black and blue which makes it stunning. Then there is the barely-visible and timid greater mouse deer which ironically is neither a mouse nor a deer. High above the tree top is a primate locally known as siamang (a type of gibbon and usually known as a lesser ape).
There is also a false gharial which looks a lot like a cross-breed between a crocodile and an alligator. It is believed to have been in existence for the last 65 million years and considered to be an endangered species.
A great introduction on what the zoo has to offer.