Ackergill Tower (or Ackergill Castle) is located on the coast of Sinclair’s Bay, about 4 km north of Wick, Caithness, in northern Scotland. It was built in the early 16th century, and is a category A listed building. The building is a five-storey oblong tower house. The four-storey wing to the rear was added in the early 18th century.

Ackergill Tower (or Ackergill Castle) is located on the coast of Sinclair’s Bay, about 4 km north of Wick, Caithness, in northern Scotland. It was built in the early 16th century, and is a category A listed building. The building is a five-storey oblong tower house. The four-storey wing to the rear was added in the early 18th century.