How old do you have to be?

I have seen VERY young, (probably 4 years old or so) there.

Probably a height/weight limitation instead of age

I think it was 3

Not sure just be prepared to sit and watch for hours before you get your minute in the air

I think its 7 years old but i could be wrong. My son was 8 and did it. I did see some young kids doing it.

I took my 4 year old. He loved it.