Perils of Mount Hylia
The quest is unlocked after completing The Great Plateau scenario.
"King Rhoam plans to push his body to its limits with a grueling climb to the summit of Mount Hylia. Because of the snowy weather at the mountain's peak, he'll need some materials to keep warm."
"With bags full of cold-weather supplies in tow, King Rhoam safely climbed to the summit of Mount Hylia. Surveying the kingdom from on high, he thought of a measure to keep his people safe."