One-in-four Britons walk less than five miles a month It also includes walks at Dunstanburgh Castle on the Northumberland coast, Trelissick Garden in Cornwall and Erddig Hall near Wrexham in Wales. The White Cliffs walk allows visitors to travel a new route to the South Foreland Lighthouse, which offers a previously hidden view. At Erddig, a love story between two of the property's family servants has been brought to life in a walk taking in rarely visited parts of the estate. Walkers are invited to retrace the footsteps of where the lovers met and see, through various mementoes, how their romance blossomed. The walk near Malham Waterfall in the Yorkshire Dales includes a secret cave that, according to local legend, was the home of the queen of the fairies. It is hoped the new routes will galvanise adults and children to get out into the open more frequently and for longer periods after the trust's study found that just 7 per cent of the population walk more than 50 miles per month, while almost two fifths walk only five to 10 miles a month. More than a fifth have abandoned a walk half way through, and more than a quarter admitted using public transport or a car to complete a walk. Nine out of 10 adults agreed that children walk less now than they did themselves when they were young, while more than half said they wished their children got out and walked more. A study of almost 7,000 primary school pupils published last week found that half of all British seven-year-olds were not doing even the minimum recommended one hour of exercise each day. Alex Hunt, from the National Trust, said: "The Great British Walk is all about celebrating the outdoors and discovering new places on foot.