Lough Key Forest Park, Ireland
Lough Key Forest Park County Roscommon, Ireland
vintage shot, 2008 heheh
This area in Ireland is one of the ripest for folklore and legend. Unfortunately that Castle on the island is pretty recent and in ruins -- but the Lough itself is said to have sprung over the druid Cé's grave.
From wiki: In Irish mythology, Cé was the druid of Nuada of the Silver Hand. He was wounded in the Second Battle of Mag Tuired and fled southward till he came to Carn Corrslebe. Taking respite from his journey and his wounds aching, he saw ahead of him a beautiful plain full of flowers. He desired greatly to reach it, and when he did, he died. When his grave was made, a lake burst out over it, and the whole plain.