Perlis RiverThe Perlis River is a river in Perlis, Malaysia.GeographyThe river's 11.8 km length makes it the fourth-longest river in the Perlis state.HistoryThe river was the site of the Battle of Perlis River between the Portuguese and Aceh. Under the 11th Malaysia Plan, 11 km of the river will be developed and beautified, on the section from Kuala Perlis to Kangar.