Malaysia is on a sea.
Malaysia ( [ məˈleɪsiə ] ; [ məlejsiə ] ) is a federal constitutional monarchy located in Southeast Asia . It consists of thirteen states and three federal territories and has a total landmass of 330803 km2 separated by the South China Sea into two similarly sized regions , Peninsular Malaysia and East Malaysia ( Malaysian Borneo ) . Located in the tropics , Malaysia is one of 17 megadiverse countries on earth , with large numbers of endemic species .