Andre,
here's the bit that the Tannahill Weavers write to this song on their website:

"Here is a love song with a difference. Translated from the Gaelic, it tells of the person's love for the island of Mull. We find on our travels that people who live hundreds of miles from the ocean (beachcombers do not tend to inhabit cities such as Omaha, Nebraska, or Stuttgart) find it hard to relate to the fact that it is possible to fall in love with an island. Some have even gone so far as to say they find the whole idea perverse.

We are happy to say that in Scotland we do not find it perverted in the slightest. Falling in love with an island is an everyday occurrence here and perfectly acceptable to society in general.

A Scottish pervert is something completely different... a man who prefers women to whiskey."

Wolfgang