The rehabilitation center is located in the Khao Pha Theaw area at the Bang Pae waterfall on Phuket about 9 km east of the Heroine Monument, in the east of the island. The area of Khao Phra Thaew is relatively small (2,333 ha) and surrounded by villages, roads, and plantations. Therefore, there are not all species of fauna on the island, and those living in this forest are not easy to observe. Their natural behavior is hidden in dense vegetation, and their fear of humans has strengthened that.
The Gibbon Rehabilitation Project (GRP) was founded in 1992 by Mr. Noppadol Preuksawan, head of the forestry department in Phuket, Mr. Thavorn Sri-Oon, Bang Pae Substation chief of the Asian Wildlife Fund, and an American zoologist named Terrance Dillon Morin. In 1994 the ‘Wild Animal Rescue Foundation of Thailand‘ (WAR) began to support the project, and since then it has been a research department of WAR.