The Kinabatangan River (Sungai Kinabatangan) is located in Sabah, eastern Malaysia, on the island of Borneo. It is the second longest river in Malaysia, with a length of 560 kilometers from its headwaters in the mountains of southwest Sabah, to its outlet at the Sulu Sea, east of Sandakan.. It is home to one of the world's most diverse ecosystems, especially around its lower basin. The Lower Kinabatangan forest-covered floodplain – one of the largest in the country – is a renowned wildlife sanctuary where exotic species such as Proboscis monkeys, Sumatran rhinos and Asian elephants can be found. A river safari is the best way to discover Kinabatangan's rich ecosystem and abundant wildlife. All 8 species of Hornbills are regular patrons of the riverbank greenery. The region is renowned for colorful tropical birds (incl. different species of hornbills, oriental darters, king-fishers etc), crocodiles, huge monitor lizards, wild pigs, several species of monkeys and tree snakes. The rainy season that strikes during November to March causes flood around the Kinabatangan River.