This large spacious ruin of Moyne Castle is dated to the 16th Century, although a lot of what you can see today was added at a later stage.
The castle falls right on the Galway Mayo boarder with both county's claiming the castle, all I can say is when I google mapped the castle it fell on the Mayo side.
Either way it is signposted on your right coming from the main Headford - Cong R334 road.
The castle passed hands a few more times mostly staying in the Blake family until they moved to Merlin Park Galway.
Access - The hardest part of getting to see this castle is where to park, the road is very narrow and twisty so great care should be taken wherever you park as you make your way to and from the castle.