The UK has long had a reputation as a green and pleasant land, and while farmland might account for most of that, a lot of Britain is covered in leafy forests with around four billion trees providing 15% woodland cover. Our roundup of the best woodland hikes in the country spans the largest man-made forest in England, the untouched medieval majesty of Hatfield Forest, the wild ponies of the New Forest, natural art installations and much, much more.