Nautical navigation is the process of determining a ship's position and planning its course over water. Sailors use various tools and techniques, such as maps, compasses, and GPS, to find their way. Understanding the stars and celestial navigation is also important, especially for long voyages where landmarks are not visible. Navigators must consider factors like currents, tides, and weather conditions to ensure safe travel. They often refer to nautical charts, which provide detailed information about coastlines, depths, and potential hazards. By combining these elements, sailors can effectively navigate the vast oceans and reach their destinations safely.