There are different types of surveyor. A construction or building surveyor is the person who has to make sure that buildings are being put up in the correct place and fit in with planning and building laws. A quantity surveyor is the person who keeps track of costs on a building project. A hydrographic surveyor measures points to do with water, such as rivers, lakes and oceans. A marine surveyor is a person who inspects ships. A mine surveyor is the person who finds out the position of underground mines, for example gold mines or coal mines.