Dun Adrtreck is a semi-broch that originally was d-shaped. Excavations have shown that the first inhabitants around 100 BC were violently driven out. Another occupation around 200 AD showed multiple pieces (e.g. shards and pieces of beads) of Roman origin.
If history is not quite your thing - the views here are gorgeous and there aren't too many people heading out here typically. The track can be quite boggy though do take your boots.
Dun Ardtreck on the Isle of Skye is a D-shaped fortification from the Iron Age. It features a rudimentary hollow-wall construction and a well-preserved entrance with door-checks typical of brochs. The fort is strategically located on a rocky knoll overlooking the sea.