An SSSI and a Special Area Of Conservation, the vegetation in the gorge area is especially important. Among the rare species to be found in the area are Scarce Turf-moss, Tunbridge Filmy-fern, Deratocarpon miniatum and Rock Fingerwort. The rock face and exposures are also nationally important geological features. Vegetation clearance and modification of the rock faces is to be avoided without prior consent from Natural Resources Wales (NRW) and the clearance of trees and undergrowth has in the past has led to the real threat of access restrictions.
While NRW manage the North Side of the River, the South Side is privately owned and the land owner has stated that up to 6 local climbers may climb on the south side of the river. We ask climbers to respect this and to help improve relations by keeping the area tidy.
Groups are advised to contact the NRW before using the site, and a formal concordat for the use of the gorge and the rocks has been agreed between NRW and outdoor centres. Contacting the South Wales Outdoor Activity Providers Group (SWOAPG), before group use is also possible.