Cuillin that there are no natural sources of water on the ridge (except for winter snows and melt water), although there are a few high burns just off the main ridge from which water can be obtained. Some believe the ultimate mountaineering experience of the UK is the full traverse of the Cuillin Ridge, especially under winter conditions. The Isle of Skye's position in the warm Gulf Stream makes genuine winter conditions rare, and the very short winter days probably make a 24-hour traverse impractical. The first recorded, over two days, was in 1965 by D Crabbe, B Robertson, T Patey
Cheviot Hills they are separated from the Cheviot Hills by the Tyne Gap, part of which lies within the southern extent of the Northumberland National Park. The Cheviot Hills are primarily associated with geological activity from approximately 480 to 360 million years ago, when the continents of Avalonia and Laurentia collided, resulting in extensive volcanic activity (the Caledonian orogeny) which created a granite outcrop surrounded by lava flows. The area enjoys a general right to roam under both the English Countryside and Rights of Way Act 2000 and the Scottish Land Reform (Scotland) Act 2003. The Southern Cheviots include the Otterburn Training