There's a signup station right on the bridge to Discovery Island (and I think one at Rafiki's Planet watch as well? But the one on the bridge is the best one to sign up at because it's closest to the front of the park. That's where they give you your "orientation" and the kids take an oath to be good stewards of the world, etc. It's where they get their book and their first sticker. From there it's self-guided. You use the book to find the rest of the stations that are all around the park. There's not any particular order you need to follow. Also, it's never taken us more than 5 minutes to get our books and get going so I think Touring Plans' estimate is way, way off for how much time it takes, if that's sign up time only. But in general, the more time you spend at the stations, the more your kids get out of it. The CMs are typically really good, spend a lot of time with the kids, etc. If you use it as only a sticker ("badge") collecting experience it won't be as fun or educational, IMHO.