After a couple of days you acclimatize yourself, you'll start the trek on Day Three, walking through the enormous Katiba forest which will take the whole of the day.
The pair, named Ai Bao and Le Bao, has spent more than a month acclimatizing to their new environment in a zoo in Seoul, under the care of veterinarians from both countries.
If you're still using the same habits as you were from your home country, you may be having a tough time acclimatizing to that and getting used to that.
The first time when I was going through the vegetation, the chimpanzees were still running away from me for the most part, although some were a little bit acclimatized.