The seabed is, mostly, unexplored. The human being always looks at the sky and watch the stars wandering what is beyond, but a few times he has been asked about what is under the seas, under the oceans. Nowadays technology is quite advanced but there is no way yet to computerize the shapes and the deeps of the seabed for a better knowledge of Earth. Due the tides, the sedimentation and other phenomena, like environmental or maritime, make this calculations very difficult. The objective of this project is to design a marine dron for a depth control, beginning the implementation and performing the necessary test in order to provide the funds for its construction. The vehicle will be able to prevent possible elevations of the ground when the land is irregular and avoid any vessel form being blocked. To achieve this, and unmanned vessel will be use with an automatic route. It will sail equipped with a GPS and a transducer probe to inform how the seabed looks like before any other vehicle have the chance to getting stuck. The obtained results will be stored on a small single-board computer, a Raspberry Pi, installed on the unmanned vehicle. And with a long distance Wi-Fi antenna, it will be able to connect to the seaport network. In this way, the small computer will be able to send the data to every user who wish it through a computer.