The popular Explorer Series of 1:25, 000 scale OS maps is available in a laminated version, giving it a write-on/wipe-off surface & making it much more resistant to life in the outdoors. With its exceptional level of detail & clarity, the Explorer series of OS Maps is a favourite of walkers, climbers, mountain bikers, outdoor professionals & anyone else who needs to know exactly where they are! The 1:25, 000 scale allows plenty of detail, & the squares of the National Grid allow every bit of Great Britain to be given its own unique reference number. The Explorer OL sheets cover the areas previously covered by the old Outdoor Leisure OS Maps: National Parks & areas of particular interest to those with an enthusiasm for the great outdoors. Masses of features are displayed, including areas of interest, picnic spots, campsites & National Trails, along with National Park & Rights of Way information for England & Wales.