This classic Lake District mountain bike route starts and ends in Keswick and performs a full loop around the picturesque Derwent Water and Borrowdale valley. Despite being reasonably easy effort wise, the Borrowdale Bash includes several miles of wonderful technical singletrack and beautiful views across Keswick, Derwent Water, Skiddaw and the fells beyond.
As mentioned the route starts in Keswick (making it easy to access directly from the A66). The first leg takes the road south along the east bank of Derwent Water before climbing into the fells past Ashness Bridge and towards Watendlath Tarn. Birkett's Leap then drops you back into the Borrowdale valley and climbs the other side where it descends once again, flanking High Scawdel and returning north to Keswick via the Allerdale Ramble high above the west bank of Derwent Water.