Sea freight, also known as ocean freight, refers to the transportation of goods and cargo by sea, using ships and other watercraft. It is one of the oldest and most cost-effective modes of transportation and is often used for the movement of large volumes of goods and cargo over long distances.

Sea freight is typically used for the shipment of bulky, heavy, or perishable goods that cannot be easily transported by air. For example, commodities such as raw materials, manufactured goods, and consumer goods are commonly transported by sea. In addition, sea freight is often used for the transportation of full containers, which are loaded with goods and then sealed to protect their contents during transit.

There are several types of vessels used in sea freight, including container ships, bulk carriers, and ro-ro (roll-on/roll-off) vessels. Container ships are the most commonly used type of vessel for sea freight and are capable of carrying hundreds of containers at a time.

The cost of sea freight is determined by several factors, including the size and weight of the shipment, the distance traveled, the shipping route, and the type of vessel used. Shipping companies typically provide sea freight services and can offer a range of shipping options to meet the needs of different types of shipments.

Overall, sea freight is a vital component of the global transportation network and plays a critical role in the movement of goods and cargo across the world.