There once was a historic village named Feltrim at the base of the ancient monumental hill known as Feltrim Hill. Here there was also a sacred spring turned holy well that once held legends and lore of its own. These all no longer exist as half of the hill is gone, quarrying destroying much of its heritage.
A well found just down the slope from the Kellogg company in the Finlay/Swords area of Dublin county. Just beside the Airside retail park in the holy well section.
“Wishing Trees” are very common throughout Ireland, England, and Scotland. They are usually individual trees upon which “folk magic”, “folk spells”, “faerie offerings”, or “prayers” are offered. Sometimes it is particular to a specific species, where the tree lives, or how it looks.