The orangutans share 97% of our human DNA, making them our close relatives, and the best place to see them is on Borneo. You can see them in the wild at the Semenggoh Wildlife Center, where orphaned or injured orangutans are rehabilitated and released into the wild! It’s a fantastic experience and easier than most adventures to see exotic wildlife. 
Check out my Guide to Kuching to plan your own wildlife adventure to Borneo!