The National Three Peaks Challenge involves climbing the three highest peaks of Scotland, England and Wales, often within 24 hours. The total walking distance is 23 miles (37km) and the total ascent is 3064 metres (10,052ft) - twice the ascent of the Yorkshire Three Peaks, over a similar total walking distance. The total driving distance is 462 miles. The three mountains are: Snowdon, in Wales (1085m) Scafell Pike, in England (978m) Ben Nevis, in Scotland (1345m)