Blackrock Castle

We have come to Ireland for a few days break.
I enjoy researching my family history but have hit a brick wall with my maternal grandmother. She was born in Cork in 1894 but I cant find any records for her until she gets married in Birmingham in 1917. The only thing I have is a letter from her brother in 1920 saying how much he enjoyed their visit to this castle. So, I had to pay a visit.
The weather was so atrocious that I feel the b&w treatment was called for.