um, I think ds was about 6 0r 7 - my sister-in-law loves it -they wanted us to go this time but once you've been you've been iyswim. You can buy the green Robin Hood hats,bows and arrows etc which are fun and I love looking at the Major Oak as it's so old and ricketty plus it's nice walking in the forest.
you cant miss if you go this week, you only pay for parking, all the entertainment is free, there are storytellers, singers, fire eaters, skirmishes between Robin and co and the Sheriff and his men (requiring lots of cheers and boos), a medieval market with craftsmen demostrating their skills, all in costume, and lots of the kids in too. Allthis in woodland where you can picnic and let the kids let off steam. you cant lose!