Are you talking about the seasonal Pagan Festivals or just festivals in general? If you're talking about the Sabbats I celebrate my own, along with the help of my husband. He's not Wiccan, but it's nice that he takes an interest in my religion and it's practice.
As for regular festivals, I've been to a few of them. I enjoy the crafts and the culinary works that you can find at them. Two of my favorites are the pumpkin harvest festival and the blackberry festival.