Pulau Indah ("Indah Island") is an island in Klang District, Selangor, Malaysia, formerly known as Pulau Lumut. This island is home to around 20,000 people overall. Malaysia's largest port, West Port, Port Klang, is on the island. There is a KTM station, connected to the rest of Port Klang Line by a bridge parallel to the Pulau Indah Expressway, but the station is for cargo use only and not open to passengers. Pulau Indah had significant mangrove swamps, but most of the mangroves were lost by 1999 for the development of West Port and industrial estates.