Lying just north of the equator and located between the Indian Ocean and the South China Sea, Singapore is situated at the convergence of some of the world's major sea-lanes. It is separated from Indonesia to the south by the Singapore Strait and from Malaysia to the north by the Johore Strait. Singapore island is low-lying and is composed of a granitic core (rising to 580 ft/177 m at Bukit Timah, the country's highest point) surrounded by sedimentary lowlands. Singapore has a tropical rain-forest climate with uniformly high temperatures and rainfall throughout the year. The island was once covered by rain forest, which is now limited to Bukit Timah Nature Reserve. The coast is broken by many inlets. Keppel Harbor, the heart of the port of Singapore, is a natural deepwater anchorage between Singapore and the islands of Brani and Sentosa (Blakang Mati), off the S central coast of Singapore island.
The older urban areas of the city lie to the north and northeast of the port. Jurong Industrial Estate (c.20 sq mi/50 sq km), an industrial park built largely on reclaimed swampland, is in SW Singapore. The city-state's architecture is a mix of British colonial, traditional Malay and Chinese, and modern. Among Singapore's notable buildings are the city hall, the Raffles Hotel, the Victoria Theatre and Victoria Concert Hall, the bristly, aluminum-clad Esplanade performance complex and the nearby Singapore Flyer Ferris wheel, and Old St. Andrew's Cathedral. The National Univ. of Singapore, the Nanyang Technological Univ., the Ngee Ann Polytechnic, and the Singapore Polytechnic are the leading educational institutions, and there are art, history, and science museums. Singapore has a botanic garden, a zoo, and a bird park as well as many parks. Sentosa island has been developed as a recreation and amusement complex.