Each sessions lasts about 3 hours and is available at all Apple retail locations. Kids attending will receive a DVD or CD with their creations on it, field guide, t-shirt, and will be able to get other giveaways. Best of all, Apple Camp is free though registration is required.
Kids under 13 must have a parent/guardian present; otherwise, you'll have to bring an Apple permission slip (PDF link). You can now register on Apple's Camp registration website.