Din Lligwy conjures up a romantic image of a Celtic settlement hidden in a wooded grove. Well-preserved stone-built huts in an enclosure dating from the Romano-British period. Sadly the trees surrounding the site are relatively recent. When it was lived in it would have been quite open, with a fine view across the Lligwy Bay.
Excavation in the early twentieth century recovered coins and pottery, mainly of the third and fourth centuries A.D., showing that the enclosed settlement had been occupied during the later Roman period. The people who lived here would have been local Britons who lived in roundhouses but adopted much of the lifestyle of the invading Romans. Excavation has revealed a variety of buildings, including roundhouses and rectangular barns or workshops. Smelting hearths and iron slag found in some of these buildings suggest that the site was used for metalworking. Finds included Roman coins of the third and fourth centuries, pottery, glass and a small silver ingot.