Cwmdu has several public facilities, including a park, a village pub, the Farmers Arms and a cafe, the Mynydd-Ddu Tea Room.
Its former primary school, which opened in 1873 and was visited by Prince Charles in 2006, closed in 2012 and the building now contains an art gallery.
Cwmdu attracts many tourists every year, who mainly consist of hikers hillwalking through on the Beacons Way. Cwmdu is an attractive hiking destination as it is situated in the heart of the Black Mountains, and is only about 12 miles away from Pen-Y-Fan; the highest mountain range in South Wales and within the region's National Park.
In September 2012 Cwmdu was the site for the bi-annual AstroCamp. This saw a large gathering of astronomers and was televised by the BBC The Sky at Night programme the following October.