Traeth Mawr lies within Aberffraw Bay (pronounced 'Abber frown' without the final 'n'), and is a ½ mile wide beach backed by the extensive dune system of Tywyn Aberffraw. A free car parking area is located just off the A4080 east of Aberffraw village, and access to the beach is a walk of approximately 1000 yards along the east side of the sandy Afon Ffraw (river). It's one of Anglesey's surf beaches; the surf is often messy, but best around the high tide period. The best breaks are by the river mouth, but there are also dangerous rips in this area so it's not for beginners. Due to its remoteness there's always plenty of space. Dogs are allowed at all times.
Facilities in the village include a cafe, (seasonal) toilets ♿, a pub and a small shop. The coves lying to the south of Aberffraw Bay are part of the Bodorgan Estate, and there is no public access to these.