Went to Hidden Valley last year and I took two 8 year olds who really enjoyed it. I must admit we did too.
Parked up at present unfortunately
Might help to tell me what age the kids are as I have a tweeny who is too cool for school at present.
Great place Ardmore Pet Farm - for young kids.
Perks in Youghal for indoor wet day that has bowling and a beautiful indoor carousel.
Villerstown on the Blackwater has a fab water adventure centre.
Further along Tramore has a great surf school and of course the merrys all year round and some good fish and chips.
Waterford winter wonderland worth a trip for the month of Dec, with an ice rink, carousel in the town centre and outdoor market for shopping.