The world's oldest regularly worked steam locomotive, the Ffestiniog Railway's 1864 built 0-4-0ST 2 Prince waits to leave Caernarfon station on the Welsh Highland Railway (Caernarfon) with the 17:00 service to Waunfawr on 7 August 2002. The thirteenth century Caernarfon Castle can be seen in the background.