When the industrial activity ceased in the mid-twentieth century, the buildings were demolished and the site lay derelict.

Local legend (possibly from this mistaken interpretation of the name) holds that the area was home to a monastery built by Saint Pyr in 513, although there is no concrete evidence of its existence.

The University of Wales Dictionary states that the first element is "ma" (= plain, flat area), as in Machynlleth and Mathafarn.

[4] It is now home to the Machynys Peninsula Golf Club which hosted the Wales Ladies Championship of Europe from 2005 to 2008.

[7] The Llanelli Millennium Coastal Park, which includes National Cycle Network route 4, runs along the coast of Machynys.