Harbour engineering is a specialized field within civil engineering dedicated to the planning, design, construction, and maintenance of harbours and associated maritime infrastructure. As a research concept and methodological approach, it investigates the complex interplay between marine environmental dynamics (such as waves, currents, and sedimentation) and built structures. Key characteristics include the analysis of wave resonance, structural integrity, navigation requirements, and the design of protective and operational elements like breakwaters, wharves, and dredged channels, often involving processes such as dredging and land reclamation. Its significance lies in enabling efficient global maritime trade, supporting economic growth, and ensuring secure transportation networks.