Paul Hutchison, 41, was on a solo trip off the north coast of Muckle Roe, Scotland, for a spot of fishing and sightseeing when he noticed splashing behind him.
The animal came up to the surface and rammed Paul's boat five times before he managed to record its final, piercing attack.
Paul heard a hiss of air and immediately turned on his engine and headed for shore, reaching land 25 minutes later.
