There are two important naval shipyards in Cherbourg. The state-owned shipyard DCNS has built French nuclear submarines since the 1960s. Privately owned CMN builds frigates and patrol vessels for various states, mostly from the Middle East. Tourism is also an important economic activity in this region. Many tourists visit the D-Day invasion beaches, including Utah Beach in the Cotentin. At Sainte-Mère-Église a few miles away from the beach, there is a museum dedicated to the 82nd Airborne Division and the 101st Airborne Division. The "Cité de la Mer" in Cherbourg is a museum of oceanic and underseas subjects. The main attraction is "Redoutable", the first French nuclear submarine, launched in 1967.