Biawak is a settlement in Lundu District, Sarawak, Malaysia. It lies approximately 70.6 kilometres west of the state capital Kuching, very …Biawak is a settlement in Lundu District, Sarawak, Malaysia. It lies approximately 70.6 kilometres west of the state capital Kuching, very close to the border with Indonesian Kalimantan. The name biawak is the Malay word for big lizard such as monitor lizard, iguana etc.