sentences:  The entire planning area is situated on the Straits of Johor.The islands were first inhabited by the Malays in the 1850s and by 1957, the population of the islands reached its peak at 4,169 residents, with 10 "kampongs (villages)" with predominantly Chinese residents.The islanders were all resettled onto the mainland by the 1980s due to Singapore's urbanisation and land reclamation works were carried out by the government to merge Pulau Tekong Kechii with the larger Pulau Tekong.