The term 'Northern Ireland Port' refers to the port city of Derry, which is located in Northern Ireland. Derry is the second-largest city in Northern Ireland and is known for its rich cultural heritage. It is a major port city and has been an important trading hub since the Middle Ages. The city is also home to the world-famous Derry Walls, which are a series of defensive walls that were built in the 17th century. Derry is a popular tourist destination and is known for its vibrant nightlife and lively music scene.