The Derwentwater Dawdle is a challenging 18 or 21 mile(ish) routes that takes in three tough ascents totalling 4300ft (over 4300 on long route) as you complete a full circuit of Derwentwater via Cat Bells, Seatoller, Rosthwaite, Dock Tarn, Watendlath, Ashness Bridge and Walla Crag
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