DESCRIZIONE
The present invention addresses the problem of providing a ship that can recognize the correct position of itself on the sea. A ship (100) comprises a recognition controller (160) that recognizes the position of the ship on the sea, the recognition controller (160) recognizing the position of the ship on the sea on the basis of relative distances between the ship (100) and a plurality of land-based targets. The recognition controller (160) captures an image (P1) of a structure (S1) and an image (P2) of a structure (S2) by using a first camera (161) and a second camera (162), respectively, and maneuvers the ship such that the sizes of the captured image (P1) and image (P2) do not change and thereby maintains a fixed point on the sea.