Knock Castle, also known as Caisteal Chamuis is a former stronghold of Clan MacLeod of Lewis and later, MacDonalds. It lies on the east coast of Sleat, approximately five miles north of Armadale on the Isle of Skye, south of Cnoc Uaine, on the eastern side of Knock Bay. Currently the castle is in ruins; it consists of an old 15th century keep of which one part, a window, remains to some height with traces of later buildings.
The castle was constructed by the Clan MacLeod and later captured by the Clan MacDonald in the late 15th century. Ownership of the castle passed between the two clans several times. It was remodelled in 1596 by the MacDonalds. By 1689 the castle was abandoned and started to decay. Most of the stones were then used for nearby buildings.
Wikipedia https://en.wikipedia.org/wiki/Knock_Castle_(Isle_of_Skye)
Address IV44 8, United Kingdom
Coordinates 57°6'36.899" N -5°50'50.252" E