Hi Mary,
was there last year with wife and 13 year old son. I booked thu keycamp.co.uk as it was substantially cheaper than .ie .
I found this to be an excellent site. There is a good supply of restaurants on site and they are quite reasonable. (we ate out every night in one of them). The site has loads of facilities to keep the youngsters amused. Site is located on side of a hill so depending on where your pitch/mobile is, can mean walking up some moderately steep slopes. The local town is about 1.5 miles away and there is a train line in it. There is a mini train that goes to the town. To get the most out of this site you would really need a car.
If you want more info , PM me.