Once a popular haunt for smugglers, Cwmtydu is now a small cove owned by the National Trust. It is made up of coarse sand and shingle backed by a concrete sea wall, with the Afon Ffynon Ddewi emerging onto the beach on the south side. There are rock-pools and caves at low tide. Free roadside parking overlooks the beach with a private car park about 100 yards away. An old lime kiln is on the sea front, behind the car park. Other facilities here include toilets, 2 cycle stands, a cafe and a B&B. Dogs are allowed at all times, but this beach is frequently used by seals for breeding in late summer / early autumn and should be avoided if any are on the shore.
The coastal path on this section of the coast is particularly hilly.