Take a walk around this world heritage site. After all these years Caernarfon’s immense strength remains undimmed - a brute of a fortress. History comes alive at Caernarfon in so many ways – along the lofty wall walks, beneath the twin-towered gatehouse, the walk town’s narrow and colorful streets, and the stylishly redeveloped waterfront of the Menai. (admission is free unless you wish to enter the main castle grounds where is fee is required)