If your looking for sites in or around Newquay, Hendra is great for the kids with excellent amenities. We were down in Newquay a couple of weeks ago and whilst we were there had a look at some other sites. Watergate bay looked a good site as did the one next to the Holywell bay fun park (the name escapes me) Had a lot of lakes on site for fishing. Also looked a good site for kids with plenty to do.
We decided not stop at Hendra this time and stopped at a site called Riverside which was round the corner from Hendra. The staff were very friendly but we wont be going there again.