At 10.10 p.m. on igth June, 1966, the occupants of a small boat, adrift off South Stack lighthouse, were heard calling for help. The life-boat St. Cybi (Civil Service No. 9) was launched at 10.28 in a light south westerly wind and a smooth sea. It was an hour and a half before high water. She reached the motor boat Lisa at 11.04 an^ took off the four occupants. A line was then secured and the life-boat towed the casualty into Holyhead harbour. She returned to her station at 11.30..