there is a ruined windmill for auction in Kinvara, Co. Galway. The auctioneer has described it as a tide mill, however, the OS 25″ map records a windmill on the site and the conical nature of the building would suggest a windmill.
What is more interesting is on the other side of the inlet, the 25″ map marks a “sluice” into an empty field and sure enough, Google Streetview shows this (not part of the property for sale):
The auction takes place on 16th September 2022.