The submarine `S61 Delfin` went out of service in December 1974 and the town of Torrevieja was given the last battle flag of the submarine. Since 2004 the Museum of Sea and Salt has displayed the submarine as part of the floating museum, allowing visitors the oportunity to discover the inside of a submarine. Next to the `Delfin` is the `Albatros 111` which belonged to the Customs Vigilante Service and it patrolled the coastline for over 30 years.
