The Pulau Ketam is located 30 nautical miles from Port Klang. The area is about 22.921 km2. The Island is a mangrove island surrounded by mud flat area. It was reported that the first settlement was built in the year 1920. Total population is about 10,000 of which 95% are Chinese, 4% Malay and 1% Indian. There are four neighbourhood fishing villages consisting of Ketam Island Township, Bagan Teo Chew, Sungai Lima and Sungai Dua. Most of them are fisherman and seafood restaurant operators. There are also a few aborigines families in Sungai Dua living in traditional fishing village.
The Sultan Salahuddin Abdul Aziz Shan Mosque (Malay: Masjid Sultan Salahuddin Abdul Aziz) is the state mosque of Selangor, Malaysia. It is located in Shan Alam. It is the country is largest mosque and also the second largest mosque in Southeast Asia. Its most distinguishing feature is its large blue and silver dome. The mosque has four minarets, one erected at each of the corners.