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A group of neurodiverse students are taking on a 1,000 mile (1,609km) cycle challenge from John O'Groats to Lands End.
The 12 students, aged between 14 and 16, are from Appleford School in Shrewton, Wiltshire. They live with dyslexia, ADHD, autism or other difficulties and want to complete the challenge to prove they can achieve "extraordinary things".
They will be leaving John O'Groats in Scotland on 19 June and aim to cycle between 70 (112km) and 80 miles (128km) a day back down to their final destination in Cornwall.
Mark Ball, the school's head of outdoor education, said: "I think something on this sort of scale will remain with these students for a long time, if not for life."
