Machroes Beach is at the southern end of Abersoch's main beach, and is reached via the village of Bwlchtocyn. It is sandy with small shingle and wooden groynes, and backed mostly by low dunes. Access is down a slipway, and it's a good beach for shell collecting. Parking is at a P&D car park. Facilities include toilets, a cafe with seating overlooking the beach and a grassed seating area with picnic tables. Dogs are allowed at all times.
Porth Bach (Grid Ref: SH324265) is a small sheltered cove on the other side of the Penrhyn Du headland. The land behind this beach is private, but it can easily be reached during the low tide period by a short walk / scramble around the rocky point.