Dun Smail stands on a prominent mound, immediately adjacent to the last house to the west in the small community of Clachan, less than a kilometre south of Staffin. There is little remaining of this dun except for intermittent remnants of a wall near the top of the mound.
The mound is easily accessed from the west, where it is a gentle stroll to its summit, which affords splendid views of the Quiraing.