'Mae Project Ynys Echni'n rhan o Gyngor Sir Caerdydd = The Flat Holm Project is part of Cardiff County Council' - Testun / Text.
Dewch i weld Ynys Echni : sy'n gyfoethog ei bywyd gwyllt, ac yn llawn hanes = Come and see Flat Holm Island : rich in wildlife, steeped in history. Published by Project Ynys Echni in 2001. Publication and catalogue information, links to buy online and reader comments.