Found a nice version of the legend as follows which has more details of
the ending than Torquil's version:
"The Legend of the Corryvreckan...
A Scandinavian Prince, Breakan, fell in love with a Princess of the Island,
whose father consented to the marriage, on condition that Breakan should
show his skill and courage by anchoring his boat for three days and three
nights in the whirlpool.
Breakan accepted the challenge and returned to Norway, where he had three
cables made.. one of hemp, one of wool and one from maidens' hair. The women
of Norway willingly cut off their hair and plaited the rope. It was believed
that the purity and innocence of the maidens would give the rope strength to
stand the strain.
Breakan returned and anchored in the whirlpool. On the first day the hemp
rope parted, but they survived the night. On the second day, the woollen
rope parted in a strong wind, but they survived the night again.
On the last day they set the plaited cable of hair and all went well until a
gale of wind broke the rope. The boat was sucked under by the currents and a
surviving crewman and Breakan's dog dragged the body of Breakan ashore - he
was buried in the King's Cave.
When the crewman finally made it home again and told of Breakan's fate, one
of the young Norwegian ladies was consumed with guilt, as she was not as
pure as she had made out - it had been her hair which weakened the rope."
I like the detail of the dog bringing the body ashore, and Breakan's burial
place being mentioned,
