Briarlands Farm Its right next to Blairdrummond safari park, Stirling.
It was really really lovely. Aimed at under 7's I would say - bascially huge big field, loads of bits and pieces to play on - big bouncy pillows, go-karts, the most amazing wooden slide/climbing frames, sand pit etc.
Was a really chilled day out, and could have spent longer there had we brought a picnic and not headed to Dobbies
I'd never heard of it before, but will def be heading back!