One of the few subs in the world with guided tours is moored in Torrevieja fishing docks. Constructed in Cartagena,Spain it has a displacement of 1043 tonnes is 57. 8 metres long. Surface speed 15. 5 knots,submerged 13. 2 knots. On 1st Dec 1974 the battle flag was handed over to the sub in Torrevieja and due to this connection the Defence Ministry gave it to Torrevieja in 2004 and is now part of the Floating Museum.