would you like to see the other "Politician" song I mentioned?
About 4 hours after I posted my last message, I was walking on a boggy, mist-covered hill above Crohy Head and suddenly I start thinking Mudcat again ... that I should have said as far as I recall there was supposed to be gold bars on the ship which haven't been found and that's what the scuba divers go looking for.
thanks, Aodh, for filling in other details.
I see some "Joe Clone" fixed the line breaks for you - but didn't know or notice to add the "a" to "fhalbh" (verse 3).(To create line breaks, add the letters br for break in between angle brackets at the end of the line - one of many things I've learned via Mudcat!)

Do you know anything about a legend that there is a viking ship under water near Benbecula - I think the spot is called "Baigh na Birlinn" (Birlinn being a type of boat)? and are there any songs/poems on this topic?