5 things to know about Kayan river, North Kalimantan

While in Sarawak we have Batang Kayan river in Lundu, in North Kalimantan they have their own Kayan river too. North Kalimantan borders the Malaysian states of Sabah to the north and Sarawak to the west, and by the Indonesian province of East Kalimantan to the south. Although they both