HC Deb 26 April 1967 vol 745 c1590
27. Mr. Boyd-Carpenter

asked the President of the Board of Trade whether he is satisfied that the passage between the Scilly Isles and the mainland is safe for the operation of very large ships; whether he is satisfied that sufficient warning is given of navigational hazards of this passage; and whether, in the case of the "Torrey Canyon", any steps were taken to warn her master that she was standing into danger.

Mr. J. P. W. Mallalieu

I am advised that the main passage, which is between the Seven Stones lightship and the mainland, is safe and that the navigational hazards of the area are adequately marked. The crew of the Seven Stones light vessel fired rockets and displayed signals meaning "You are standing into danger".