Garinish or Garnish Island is an island in Glengarriff Bay, an inlet of Bantry Bay, near the shore of the Beara Peninsula in County Cork, Ireland. It is a popular tourist attraction with walled gardens and a Martello tower.
Wikipedia https://en.wikipedia.org/wiki/Garnish_Island
Official Website http://www.heritageireland.ie/en/South-West/Ilnacullin-GarinishIsland/
Coordinates 51°44'9.966" N -9°32'34.896" E