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Photo: Rtomandl, CC BY-SA 4.0 via Wikimedia Commons
Fragmentary ruin of a castle from the 13th century and now garrisoned by sheep, you mostly come for the harbour view.
Tarbert Castle is located on the southern shore of East Loch Tarbert, at Tarbert, Argyll, Scotland, at the north end of Kintyre. Tarbert Castle was a strategic royal stronghold during the Middle Ages and one of three castles at Tarbert. The castle overlooks the harbour and although pre 14th century in construction, the tower dates back to 1494 and the visit of James IV to the Western Highlands.
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Castle built from the 13th century, with chapel by the shore added in 1300, all abandoned and falling into ruin in the 17th.