Navigation is the process of determining one's position and planning a route to reach a destination. It is essential for various modes of travel, including land, sea, and air. Techniques can range from traditional methods, such as using a compass and maps, to modern technologies like GPS and digital mapping systems. In maritime navigation, sailors often rely on celestial navigation, which involves using the stars, sun, and moon to guide their journey. This ancient practice has been crucial for explorers and is still taught today, showcasing the blend of science and art in finding one's way across vast oceans.