A peninsula (Latin: paeninsula from paene "almost" and insula "island") is a piece of land that is bordered by water on three sides but connected to mainland. The surrounding water is usually understood to belong to a single contiguous body, but is not always explicitly defined as such.A peninsula can also be a headland, cape, island promontory, bill, point, or spit. A point is generally considered a tapering piece of land projecting into a body of water that is less prominent than a cape.