HMS Scylla, a decommissioned Leander-class frigate, is sunk as an artificial reef off Cornwall, the first of its kind in Europe.

HMS Scylla (F71) was a Leander-class frigate of the Royal Navy (RN). She was built at Devonport Royal Dockyard, the last RN frigate to be built there as of 2016. Scylla was commissioned in 1970, taken out of service in 1993 in accordance with Options for Change, and sunk as an artificial reef in 2004 off Whitsand Bay, Cornwall.