To complete the National Three Peaks Challenge you have to climb the highest peaks of each of the island's three countries (Snowdon, Ben Nevis & Scafell Pike), usually in less than 24 hours. The National Three Peaks map set covers the top summits in stunning colour detail, with every track & path clearly marked to help you complete your challenge. You save 20% by buying them as a set. With all OL maps in this set you will receive a code for use on your i OS or Android smartphone or tablet. Find our more at Mobile Download FAQ. The maps included are: Sheet 392 Ben Nevis & Fort William, OL6 The English Lakes: South Western Area & OL17 Snowdon. The mountains climbed, in order of elevation, are Ben Nevis in western Scotl&, 1, 344 metres (4, 409 ft), Snowdon in North Wales, 1, 085 metres (3, 560 ft), & Scafell Pike in The Lake District, 978 metres (3, 209 ft). The peaks are usually climbed in the order: Ben Nevis in the evening, Scafell Pike in the early morning & Snowdon in the mid- to late-afternoon. Ben Nevis is the highest & the hardest of the national three peaks, a gruelling uphill struggle & very tough on the knees going back down. The main path up ‘ The Ben’ is obvious can be done in fading light as long as you find the right path down. Scafell Pike has many start points & paths to the top, but they are less clear. There are also numerous routes up Snowdon, from the easier & popular routes like the Pyg Track to the potentially scary Crib Goch ridge. Average time for Snowdon is 4 hours, with 5 hours each for both Ben Nevis & Scafell Pike, (14 hours total) plus a maximum of 10 hours travel time between the start & end points of the 3 peaks. Doing the challenge in a group for charity is now the most popular way & has the added benefit of wide-awake drivers. After scaling the three highest peaks you'll almost certainly want to go back & try one or more of them again.