A dhoni is a traditional wooden boat commonly used in the Indian Ocean region, particularly in countries like the Maldives, Sri Lanka, and parts of India, such as Kerala. Dhonis are known for their distinctive design and are primarily used for fishing, transportation, and sometimes for tourism and leisure activities.

A conveyor barge is a type of barge that is equipped with a conveyor system for transporting bulk materials, typically in a continuous and efficient manner. The conveyor system on the barge allows for the loading and unloading of cargo without the need for cranes or other heavy equipment, making the process faster and more cost-effective.

A support boat is a type of vessel used to provide assistance in various maritime operations. These boats are commonly used in situations where they are required to support the main activities of larger vessels or events.

A speedboat is a type of motorized boat designed for high-speed travel on water. These boats are specifically built for performance, offering quick acceleration and high top speeds compared to other types of boats. Speedboats are often used for recreational purposes, including watersports, racing, and leisure cruising, but they can also serve commercial or military functions.

A tugboat is a powerful, small to medium-sized vessel designed primarily to tow or push larger ships, barges, and other vessels. Tugboats are essential in various maritime operations, particularly in harbor and port areas, where their strength and maneuverability help guide and move ships in confined or shallow waters.

A utility boat is a type of watercraft designed for a wide range of practical, functional purposes, primarily in industrial, commercial, or service applications. These boats are versatile and can be used in various settings such as ports, harbors, offshore platforms, and coastal waters. Utility boats are typically smaller and more robust than passenger boats and are built to handle tasks like transporting goods, personnel, equipment, and performing specific functions.