Pwll March (also known as Pen-y-Cwm beach) is at the northern end of Newgale Sands. It can be reached at low to mid-tide by walking along the shore from Newgale, and at other times via the coast path. Alternatively, there is some roadside parking at Penycwm, from where a public footpath follows the line of a former tramway down the valley to the beach.
The beach is of course sand and light shingle, with rocks, rockpools and a walk-through cave. The cliffs are of sandstones, conglomerates and shales. Further to the north is the small beach of Cwm-bach which can only be reached along the shore at low tide.