Missing possible man made structures nearby, survey needed.
"Bee Hives"

Source (use for reference only!);
See map at https://kilkennycastle.ie/about/accessibility/

Survey needed; Also here it looks like there may be recycling, or turning circle, or both. I have marked it as turning circle for now.

Other one: note/3233813

Unclear; Is this recycling, giant turning circle, both, or?

This building is tagged as garage, but it is likely a house.

Improve building geometry;
add extensions on north and south side

Imagery: Esri Clarity, Esri, Maxar Premium

Missing path to access swimming area, survey needed.

node/11123821236/history

Missing rectangular building extension from main building
Between the two round towers.

Missing possible details/POI, survey needed;
Info signs/papers on window facing north(into park)

Missing possible POI, survey needed.

There is at least one other memorial plaque / tree nearby
"Sgt Pat Cassidy"

Source (use for reference only)
https://twitter.com/JoeCassidyIRE/status/1023574125003059200/photo/1

Check for footway