![OS Explorer ACTIVE OL27 North York Moors - Eastern area (OS Explorer Map Active)](http://monsterbookshop.co.uk/cdn/shop/files/9780319469453_4e7e1c81-a58b-43d2-968e-25ba43ed9b7a.jpg?v=1718921439&width=1445)
OS Explorer is the Ordnance Survey's most detailed map and is recommended for anyone enjoying outdoor activities such as walking, horse riding and off-road cycling. The series provides complete GB coverage and can now be used in all weathers thanks to OS Explorer - Active, a tough, versatile version of OS Explorer. The OS Explorer Active range of OL maps now includes a digital version of the paper map, accessed through the OS smartphone app, OS Maps.