The overall series of the four castles of Edward I includes within the property boundary all the medieval defensive structures – castles and town walls – but not the planned settlements or waterfronts. AuthenticityThe authenticity of all four medieval castles and of the two town wall circuits has been maintained despite some reconstruction in the late 19th century at Caernarfon. The town walls at Caernarfon and Conwy remain unchanged providing an almost complete enclosed entity to their related townscapes. Evaluation of boundaries will be undertaken as part of the Management Plan review process. Tourism and visitor management is directed by the Welsh Government’s Historic Environment Strategy and implemented through the World Heritage Management Plan which includes policies for promotion, access, interpretation and visitor management.