Might the song you're looking for be "The Cuillins of Home"?

The lyrics start:

Soon shall I see thy bright shores in the moonlight,
The heather of hills and the rising of morn (Mourne?)
The rolling grey sea-mist flows east in the morning
To walk the wild hills by the Cuillins of home.

If this is what you seek one of the best versions is sung by the great Scottish bard Archie Fisher on Sunsets I've Galloped Into.