There are many long houses which are found at the Kahayan river mouth become an interesting scenery. The long wooden boats become the backbone of the inter-village transportation. The upstream journey by Klotok boat (long boat) along the Kahayan River has its own challenge. This river is indeed not so widely known, if compared with Kapuas River (600 kilometers) and Barito River (500 kilometers). Like the big rivers in Kalimantan, this river has been the source of subsistence of the population for thousands years, from which they would hunt, fish and collect foods and other forest products (such as bee wax, hornbills ivory, rattan cane, resin and camphor).