Carlingford Lough is a scenic sea lough located on the border between Northern Ireland and the Republic of Ireland. It stretches approximately 12 miles and is surrounded by the picturesque Cooley Mountains to the east and the Mourne Mountains to the west. The lough is known for its rich marine life and serves as an important habitat for various bird species. The area around Carlingford Lough is popular for outdoor activities such as hiking, sailing, and fishing. The charming town of Carlingford lies at its northern end, offering historical sites and local cuisine. The lough is also a key waterway for shipping and tourism in the region.