Cruise ship horns have long been used as maritime signals for departure, arrival, and warning other vessels, with their deep tone designed to travel far across water. Online, recordings of these blasts became popular sound effects for travel videos, ship spotting clips, and meme edits where size and drama matter. This longer version is favored because it captures the full swell and natural decay. Creators reuse it for port footage, Titanic references, and comedic entrances, where the familiar horn instantly communicates scale without needing any on-screen explanation.