The term SEAS (FR.) is a four-letter acronym that stands for Mers-El-Kebir, a port city in Algeria. It is also known as the 'Pearl of the Mediterranean' and is located on the western coast of the country. The city is home to a large naval base and is an important strategic location for the French Navy. The port is also a popular tourist destination, offering a variety of activities such as swimming, fishing, and sailing.