Nautical archaeology is the study of past human interactions with the sea through the examination of shipwrecks, harbors, and other underwater sites. This field combines elements of archaeology, history, and marine science to uncover artifacts and structures that reveal information about maritime cultures and trade routes. Researchers in nautical archaeology often explore submerged sites using advanced technologies like sonar and remotely operated vehicles. They analyze findings such as ancient ships, cargo, and navigation tools to understand how people traveled and traded over water, contributing to our knowledge of historical economies and cultural exchanges.