Explore details about location Clos Sain Dunwyd. Clos Sain Dunwyd is a location situated within the Merthyr Tydfil alongside other areas such as Avenue de Clichy, Caerdraw Road, Heol Llwyn Deri. Additionally, some smaller parts of Clos Sain Dunwyd include specific areas like Trem y Bannall adding to the diversity of its landscape.