The Meritus Pelangi Beach Resort is located at Pantai Cenang, Langkawi. Pantai Cenang is the most developed beach on the west coast of Peninsular Malaysia.
Rajang River (or Rejang River) originates in the Iran Mountains in Borneo Island, then flows southwest to Kapit where it turns westward to finally discharge over a swampy delta into South China Sea.
High surface runoff from nearby housing developments near Sg. Choh in Selangor, Malaysia have resulted in a rapid increase in the volume of water carried by the river.