We explore the stunning Wye Valley Greenway, cycling through a pitch-dark thousand-yard bat tunnel built in the 1870s and uncovering the fascinating history of this lost Welsh railway. A brilliant day ...

The 1,080m long Tidenham Tunnel is hypnotically beautiful, with its high arches, low lighting - and some very special residents. The tunnel connects Tintern and Sedbury along the Wye Valley Greenway, ...