The Castle Café  is located in the grounds of the Blackrock castle and is perfect for lunch on a summers day. There is fantastic outdoor seating in the court yard and there is also a great kids menu. The grounds are perfect for toddlers and there is plenty of room to run around. It can get cramped inside and it is better to reserve a table if you are planning on sitting indoors. There is also an observatory within the castle and a fantastic walk right next to it with plenty of green space, away from the road.