Puck's Glen is a river-formed ravine on the Cowal peninsula in Argyll and Bute, Scotland, with a popular scenic walking trail beside the Eas Mòr stream (Gaelic for big waterfall). It comes under the Forestry Commission which highlights it as a feature of the Argyll Forest Park (itself within the Loch Lomond and The Trossachs National Park), and describes it as One of the most magical forests in Scotland, with a delightful trail along a rocky gorge.