Jacques Cartier was born in the port city of Saint-Malo, Brittany, a region known for its seafaring tradition. Growing up in this environment likely exposed him to maritime skills and fostered his ambition to explore the world beyond the European shores. His early life remains somewhat obscure, but it's believed he gained experience sailing on fishing expeditions and trading voyages, building a foundation for his later expeditions.

Prior to his famous voyages to Canada, Cartier likely gained substantial experience as a mariner. Although specific records are scarce, it's assumed he participated in voyages to Newfoundland and possibly Brazil. These experiences would have honed his navigational skills, ship handling abilities, and understanding of Atlantic currents and weather patterns, preparing him for the challenges of exploring uncharted territories.