Lakeland walks away with the top award.
The poll was conducted among members of the Ramblers Association in its membership magazine, Walk.
Sheona Southern, marketing director of Cumbria Tourist Board, said: "The award is great news for Cumbria and the Lake District. We are one of the UK's leading outdoor activity destinations and this recognition demonstrates the nation's increasing passion for walking in an inspirational and varied landscape like Cumbria."
The award comes as the board launches its ROAM (Registered Outdoor Activity Member) accreditation scheme, which aims to ensure quality and safety across Cumbria's adventure industry.
Activities covered range from fell walking to climbing and from rowing to white water kayaking. The scheme is part-financed by the Northwest Regional Development Agency whose director of tourism, James Berresford, said: "Outdoor activities have long been synonymous with the outstanding landscape of Cumbria ( The Lake District.
"This innovative scheme gives well-deserved recognition to leaders in this field, and instills confidence in consumers that they are experiencing the best. "
* Walkers in the North-East countryside who are accompanied by dogs were reminded yesterday that their pets must be kept on a lead no more than two metres (6ft) long from this month until July 31.
Spring is the lambing season for hill farms and early summer the main breeding season for many ground nesting birds, so access may be restricted for both people and dogs.