Furthermore, September 2019 saw Cadw partner with hundreds of public, private and voluntary heritage bodies for the annual festival of Open Doors.
Ar ben hynny, ym mis Medi 2019 roedd Cadw yn bartner gyda channoedd o gyrff treftadaeth gyhoeddus, breifat a gwirfoddol ar gyfer gŵyl flynyddol Drysau Agored.