You might be familiar with the original Anglesey Circuit from early Fifth Gear programmes of the Tiff Needell / Vicki Butler Henderson years. That circuit, built on an old Army Camp was extensively redesigned to the latest FIA specification in 2007 to create the circuit we see today.
Also known as Trac Môn, or sometimes Ty Croes, it is on the south coast of the island and is only equalled by Phillip Island in Australia for the sea as a back drop !