Why Do Tugboats Spray Water While Towing Ships?

Although tugboats are small, they are among the most powerful vessels on the water. Designed for strength over speed, these small powerhouses use reliable diesel engines and powerful propulsion systems to tow, push, and guide some of the world's biggest ships. Their high maneuvering ability allows them to assist cargo ships in docking, move giant cruise liners around, and even save vessels that run aground. Whether weaving through tight waterways or working in busy ports, tugboats contribute significantly to keeping maritime traffic moving safely and efficiently.

One of the most eye-catching sights in tugboat operations is their dramatic water sprays, often leaving onlookers wondering about their purpose. This is made possible via the deluge guns installed on some tugboats, equipping them with the ability to participate in fire prevention and firefighting when necessary. If a fire breaks out nearby, the tugboat can quickly respond with its powerful water cannons, preventing the fire from spreading to other vessels or port facilities. Why, then, do these streams of water sometimes shoot from a tugboat when there's no fire nearby, such as when tugging a larger ship? The answer has more to do with tradition.

Tugboats don't spray water just for practical reasons — they also, at times, do it to celebrate. This tradition, known as a water salute, is typically reserved for prestigious and historically significant warships and cargo vessels, much like the ceremonial water salutes given at airports. One of the most common reasons for a water salute is to celebrate a ship's arrival or departure. New cruise ships, naval vessels, and commercial ships on their first trip may receive this ceremonial send-off as a wish for good fortune and safe travels. Likewise, when a ship retires, tugboats may shoot water as a final salute before it is decommissioned.

Water salutes may also be a highlight at maritime festivals like the Hamburg Port Anniversary, port openings, and historic anniversaries. They can be used to commemorate prominent guests, maritime heroes, and emergency responders. In such occasions, tugboats often synchronize their sprays to create a spectacular display, and in some cases, organizers add colored dyes to make the spectacle more memorable.