Map shows Johore Strait, Serangoon Harbour, contours, physical landscape, trigonometrical stations, vegetation, sand banks, ponds, swamps, villages, schools, cemeteries, prohibited area_Seletar, Singapore Airport, Changi Prison, Singapore Engineering Limited, Crown land, Matilda Estate, Bukit Sembawang Estate, Tampines Estate, Kampong Loyang, Kampong Tampines, Kampong Pasir Ris, Kampong Sungei Blukar, Kampong Teban, Kampong Punggol, Kampong Pinang, Kampong Sireh, and others