Cape Breton Island ( French : Ã le du Cap-Breton - formely Ã le Royale , Scottish Gaelic : Eilean Cheap Breatuinn , MÃ kmaq : Ã namakika , simply : Cape Breton ) is an island on the Atlantic coast of North America . Cape Breton Island ( â '' formerly Ã le Royale , Scottish Gaelic : Eilean Cheap Breatainn , MÃ kmaq : Ã namakika , simply : Cape Breton ) is an island on the Atlantic coast of North America .