Pentre Bach is a small, secluded campsite located near the village of Waunfawr in Gwynedd, Snowdonia, North Wales. The site offers tent pitches in a quiet field adjacent to the main house, with showers and toilets available but no electric hook-ups.

Small campervans up to VW size are accommodated on a hardstanding pitch at the end of the car park; caravans and trailer tents are not accepted.

The site sits roughly five minutes' drive from the Snowdon Ranger and Rhyd Ddu trailheads on Yr Wyddfa (Mount Snowdon) and about ten minutes from Caernarfon, making it a practical base for hillwalking, coastal exploration, and visits to historic sites across the region.

A real ale pub is within a ten-minute walk.