Gigalum is a tiny, private island off the southeast coast of Gigha. It has a modern house in the middle, and gives its name to the strait between it and the main island, "Caolas Gigalum". There is also the "Gigalum Rocks" a reef to the east, and about a mile north north east from Gigalum Island itself, "Sgeir Gigalum". It is also flanked by another islet, "Eilean na h-Uilinn", literally "Island of the Elbow".