This was my favourite place wen I went to Ireland, it's a castle ruins on the edge of a beach and we found out very quickly that you have to leave at a specific time as when the tide comes in, the castle becomes an island. It's very different to England's ruins as this one has two stories, that you can climb up, as there are still some stairs. Plus there was nothing around it, if we were in england there would be health and safety all over it.
As you can see below the archways leading in and out of the little building were perfect to create a frame in the image. I love the top one, which is taken of my dad, as he just seems to be perfectly lit, with his left side and his clothes blending in with the stone then the right side of him being lit by the natural available light, highlighting his profile.