This is the second of two fine waterfalls for which the valley above Aber is known. The best known of the waterfalls is the Aber Falls, on the River Rhaeadr-fawr, the river running down the valley from the high slope of Foel-fras and Carnedd Gwenllian: this river is named after its waterfall as Rhaeadr-fawr means 'Great Waterfall'. Rhaeadr-bach means 'Little Waterfall', and it is found on a smaller stream running north off the slopes of Carnedd Gwenllian. Here the waters of the stream tumble over the same crags as from its larger sister waterfall.
Both waterfalls can be visited from Abergwyngregyn and are on the course of a waymarked footpath known as the North Wales Path.