Only festival I've been to is Bonnaroo ('06,'07)..Didn't have any issues smoking at all. None whatsoever. When you're entering the main area, they loosely frisk you, and sometimes they will take your weed and other belongings, but I would just put my weed in a couple packs of cigerettes and walk on thru. Or I put my stuff in my shoe...SHOES ARE THE BEST at festivals, I learned that the hard way