![Lake District OS Explorer Active map OL5 The English Lakes - North Eastern area: Penrith, Patterdale & Caldbeck](http://monsterbookshop.co.uk/cdn/shop/files/9780319475850_aabe2ce5-fc8a-44eb-8528-d8d4eec267b5.jpg?v=1718467087&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 includes a digital version of the paper map, accessed through the OS smartphone app, OS Maps.