Sea freight, also known as ocean freight, is the transportation of goods by sea or inland waterways. It is one of the most cost-effective modes of transportation for shipping large quantities of goods over long distances.

Sea freight can be carried out through various types of vessels, including container ships, bulk carriers, and tankers. Container ships are designed to carry cargo in standard containers, while bulk carriers are used for shipping large quantities of unpackaged goods such as coal, grain, and minerals. Tankers are used for shipping liquids such as oil and chemicals.

Sea freight rates are typically calculated based on the volume and weight of the cargo, the distance traveled, the type of goods being shipped, and any additional services required, such as customs clearance or door-to-door delivery.

Sea freight is a critical component of global trade and logistics, and is essential for businesses operating on a global scale. It is particularly suited for shipping bulk goods, heavy machinery, and oversized cargo that cannot be transported by air or land. However, sea freight can be slower than air freight, and may require additional time for customs clearance and port handling.