In 1975 the Wye Valley Walk opened with a 14 miles (23 km) stretch between St. Arvans and Monmouth. Further stretches were added, leading to it becoming a 34-mile (55 …
Otter Hole / Otter Cave is known as one of the best "decorated" caves in the UK. Access is restricted to protect the rare formations inside. The cave also floods, …
This striking feature is a curving tunnel that is cut into the rock-face through which Piercefield Walk passes via a large opening in the southern side, and a smaller rectangular …
Can be seen from the opposite bank (Chepstow side) Gloucester Hole, smuggling, storage of tea, explosives or other smuggled goods?? Marked with a Union Jack and only accessible at high tide!