Arthur's Seat is a huge crag, 822 feet above sea-level and towers above the city of Edinburgh. It has been known as Arthur's Seat since the fifteenth century. Arthur's Seat can be seen from the end of the Royal Mile near Holyrood Palace. You can also walk all around and up to the top.
The actual 'Arthur's Seat ' is the notch between the highest point of the peak and a secondary point a little way to the south. It is probably named after a local hero who happened to bear the name Arthur, rather than any connection with King Arthur.
Edinburgh may derive its name from King Edwin of Northumbria, who built a stronghold on Castle Rock. Though this was later than Arthur, there is evidence of earthwork defenses around Arthur's Seat.
Edinburgh is linked with the Castle of Maidens in several Arthurian tales, probably because one of Edinburgh's names in the Middle Ages was Castellum Puellarum (Castle of Women). In the legends a number of female prisoners are kept in the "Castle of Women"; in other legends they say that women from the castle attempted to seduce passing knights. One tale has Arthur's half-sister, Morgan le Fay, as mistress of the Castle of Women.
Scottish Arthurian Sites