Yann Côté-Nadeau is a hydrographer and is part of the Canadian Hydrographic Service team, whose role is to map Canadian waterways to ensure commercial navigation and boating safety. Following his studies in geomatics, Yann steered his career choices into the maritime field to diversify his experiences, including surveying, dredging, and hydrography. Now, as a multidisciplinary hydrographer at Fisheries and Oceans Canada’s Institut Maurice Lamontagne, he works to acquire depth data, detect navigation hazards, and measure water levels. This information allows for the continuous update of maps and other publications from the Canadian Hydrographic Service including tide and current tables. The challenges in the hydrography field, when considering navigation safety, is vital to the vast marine expanses of Canada, both for the economy and for the environment.