The giant, the witch and the Mountain of Mystery
Slieve Gullion is the highest hill in County Armagh, and it wears its legends lightly. Locals have long called it the Mountain of Mystery, and at its summit sits a small lake beside an ancient stone tomb that folk know as the Calliagh Berra's House. The whole forest park below — the playpark, the fairy trail, the winding drive — takes its spirit from the old story that plays out on that peak.
Legend has it that the great warrior Fionn mac Cumhaill — Finn McCool — came to the mountain and met a woman weeping by the lake, who begged him to dive in and fetch her golden ring. Fionn, being Fionn, dived straight in. But the woman was really the Calliagh Berra, a shape-shifting enchantress, and she had put a spell on the water. When Fionn climbed out, he had turned into a frail old man with hair gone white. The story goes that his loyal band, the Fianna, tracked the witch down and forced her to undo the curse — his youth came back, but his hair stayed white ever after, which is said to be how he got the name Fionn, meaning "the fair one".
That's the tale the park leans into, and it's why the woodland trail is called Fionn's Giant Adventure. Children follow a mile of forest path through a made-up world of fairy houses, a giant's table and the mischief of legend, while the playpark next door lets them climb, slide and zip until they're happily worn out. Wind up the one-way drive afterwards for the big view across the Ring of Gullion, and it's the kind of full, free day you'll be glad you gave the whole day to.