The landform has been re-shaped by the extraction of limestone and by the nearby mining of silica rock and its transport down-valley by various means. The former limestone quarry is now a car park; its walls are used by climbers and abseilers. The Dinas Rock Silica Mines just to the east of Dinas Rock itself used to provide large quantities of very pure crushed sandstone destined for the manufacture of refractory bricks for furnace linings and the like. A system of tramways, aerial cableways and inclines on the southern flanks of Dinas Rock conveyed the material from the mines to the valley below.
Recreation
Its dramatic appearance has long made Dinas Rock a destination for casual visitors, but its steep rocky flanks also attract rock climbers and gorge-walkers. The tramways now provide routes for walkers to enjoy the site, in particular the Sychryd easy-access trail, which runs for ¼ mile from the main car park to the Sgydau Sychryd cascade between Dinas Rock and the spectacular rock known as Bwa Maen, on the southern side of the Afon Sychryd.
Climbing
The steep and overhanging southern faces of Dinas Rock are moderately popular with sports climbers, whilst easier routes are enjoyed by organised groups in the former quarry at the western end of the rock. It is considered by some as the best inland cliff in South Wales for rock climbing. The cliff features 75 sports routes through a variety of grades on clean rock with a variety of styles and features.
Gorge walking
The beds and rocky sides of the two rivers provide one of the most popular venues in Wales for gorge-walkers. Natural Resources Wales works with organised adventure sports providers and landowners to manage this activity, so as to minimise the damage which it can cause to the SAC, which NRW is charged with protecting under European environmental protection law.
Caving
There are a few short caves in and around Dinas Rock, including Ogof Pont Sychryd, Ogof Bwa Maen and Will's Hole. The last named is also known as Arthur's Cave or Dinas Rock Cave and extends to just under in length. It is associated with Arthurian legend, as it is one of the many locations reputed to be the place where Arthur's knights lie waiting for a call to defend Britain.
Motorcycle Sport
The International Six Days Trial was first held in 1913 in Carlisle. The event originally a reliability test became the premiere off road event sometimes known as the Olympics or Davis Cup of Motorcycling and was reported on across the world and in News Reels and National Daily Papers. It took place in Wales in , , , and starting from Llandrindod Wells. Each day the riders faced about 400km of riding. In these years the course passes and featured Dinas Rock as a technical challenging feature. It was sufficiently noted for the specialist press photographers to catch the riders passing through and images of Dinas Rock are found in the motorcycle magazine reports of the time.