This hill has large caves, and quarrying of limestone was formerly the main industry of the village, with crushed stone being exported from the 200 m long jetty.

[3] Llanddulas Limestone and Gwrych Castle Wood is a Site of Special Scientific Interest.

In February 1990 a storm and high tide caused extensive flooding to the east of here, especially at Towyn and Kinmel Bay.

[4][5] New coastal defence works were built along seven miles of coast from Old Colwyn to the River Clwyd.

[6] Waugh wrote the satirical novel Decline and Fall while staying there and his experiences during his visit inspired Llanabba Castle, a fictional school, in the novel.