Kunang-Kunang simply means fireflies in the local language, and a good place to see fireflies in northern Borneo is at the Klias Peninsular. Lies at the heart of the Klias Peninsular is the mocha colour Klias River, which flows south and eventually reaches the sea at a small town, called Menumbok. At the Klias River, the term Kunang-Kunang is also the name of an eighty feet long house boat, which brings guests on a deluxe cruise to discover the beauty and wonders of the Borneo Mangrove Wetland. Kunang-Kunang is one of the largest boats on the Klias river, and it can accommodate up to fifty persons. Types of animals and primates that one will be able to see along the river include the Proboscis Monkey, Silver Leaf Monkey, Long Tailed Macaque, Monitor Lizard and the Borneo Water Buffalo. Birds are also commonly spotted on the trip.