Islands of Ireland: Moonlit horseman of Lough Gur

Garret Island is impenetrable under a canopy of trees growing at every conceivable angle. When the Irish Examiner visited recently there was a feeling of a lost city to this small but fascinating place in the monument-rich Lough Gur, Co Limerick.
After some poking about, the gable wall of a castle revealed itself and then lo and behold, an entranceway. And then ... that was it! The rest was enveloped in foliage so dense that it would cover the height of three men.