Pen-y-Ghent Cafe, Horton in Ribblesdale, North Yorkshire.
Walkers 'clock in' at the cafe before attempting the Three Peaks Challenge - a gruelling 39km (24.5 mile) trek with a climb of around 1,600m (5,000 ft), taking in the three highest peaks of the Dales: Whernside, Ingleborough and Penyghent. If walkers clock back at the café within twelve hours they get a certificate and are entitled to wear the badge and tie of the Three Peaks of Yorkshire Club.