Travelers will see the feeding of the Orangutan as well as experience a walk in the forest of Borneo. Sepilok Orangutan Rehabilitation is the oldest and biggest orangutan rehabilitation center in the world. This center covers 4294 hectares. Kabili–Sepilok Forest is a virgin jungle reserve rich in tropical rainforest and mangrove swamp. It was established in 1964 with the intention of rehabilitating orphaned baby orangutans and releasing them back into the wild. Proboscis monkeys at Labuk Bay Proboscis Monkey Sanctuary, where you can experience the closet encounter. Bornean Sun Bear Conservation Centre is the first sun bear conservation center in the world. The sun bear (also known as the honey bear) is the smallest bear in the world. Rainforest Discovery Centre (RDC): learn about rainforest ecology and experience its amazing biodiversity through a network of trails in the forest.