Sarawak is divided into three ecoregions. The coastal region is rather low-lying and flat with large areas of swamp and other wet environments. Beaches in Sarawak include Pasir Panjang and Damai beaches in Kuching, Tanjung Batu beach in Bintulu, and Tanjung Lobang and Hawaii beaches in Miri. Hilly terrain accounts for much of the inhabited land and is where most of the cities and towns are found. The ports of Kuching and Sibu are built some distance from the coast on rivers while Bintulu and Miri are close to the coastline where the hills stretch right to the South China Sea. The third region is the mountainous region along the SarawakKalimantan border, where a number of villages such as Bario, Ba'kelalan, and Usun Apau Plieran are located. A number of rivers flow through Sarawak, with the Sarawak River being the main river flowing through Kuching. The Rajang River is the longest river in Malaysia, measuring including its tributary, Balleh River. To the north, the Baram, Limbang and Trusan Rivers drain into the Brunei Bay.
Sarawak is divided into three ecoregions. The coastal ,region is rather low-lying and flat with large areas of swamp and other wet environments. Beaches in Sarawak include Pasir Panjang and Damai beaches in Kuching, Tanjung Batu beach in Bintulu, and Tanjung Lobang and Hawaii beaches in Miri. Hilly terrain accounts for much of the inhabited land and is where most of the cities and towns are found. The ports of Kuching and Sibu are built some distance from the coast on rivers while Bintul,u and Miri are close to the coastline where ,the hills stretch right to the South China Sea. The third region is the mountainous region along the SarawakKalimantan border where a number of villages such as Bario Ba'kelalan, and Usun Apau Plieran are located. A number of rivers flow through Sarawak, with the Sarawak River being the main river flowing through Kuching. The Rajang River is the longest river in Malaysia, measuring including its tributary Balleh River. To the north, the Baram, Limbang and Trusan Rivers drain into the Brunei Bay.