P555 40 m
P-555 – This vessel originally entered service as an American submarine designated as the S24. In 1942 she was loaned to the Royal Navy and re-named the P-555. After the war the design was thought obsolete and she was sunk in 1947 to be used as a sonar training vessel. She lies complete in a depth of about 33m with the surrounding sea bed at approximately 40m.