Whitby, Yorkshire - At 7.42 p.m. on 3Oth August, 1966, it was reported that the sloop Kalispera had left Scarborough at 1.15 p.m. bound for Whitby and was overdue. The life-boat Mary Ann Hepworth was launched at 9.20 in a moderate to strong north north easterly wind and a rough sea. It was three and a half hours after high water. She proceeded to search in very poor visibility and found the yacht inshore of the outer reef of Whitby rock.

The life-boat escorted the yacht into harbour, returning to her station at 9.45..