Yes they are free- which makes it a great time to go. As for what there is for them, I could write pages. We took my DD for her 1st trip last December when she was 2 yrs 10 months. What you do need to realize is that while the room and admission are free for under 3, eating is pretty much only free if they eat off your plate, or just eat the little snack foods they will bring them. My DD is a eater so that doesn't cut it for her. Further, she won't eat a lot of things, and I'm not going to skip out of ordering what I really want just to feed her off my plate. If you order from the kid's menu, like we did, you will be charged even if your child is under 3. As for the parks, DD loved MK and Epcot (lots of princesses) best. She also liked DHS, but was not crazy about AK. There are a ton of rides that the little ones can do, such as Peter Pan, Small World, Pooh, Buzz Light Year; teacups; carousel; train, jungle cruise, Nemo, Journey Into Imagination, Toy Story Mania, Safari and I could go on. She loved most of the shows (Fantasmic was too scary for her taste). Some 2 year olds will sit through shows like mine, and some won't. She particularly loved the Little Mermaid and Beauty and the Beast shows at DHS. She liked the Muppet 3-D and Mickey's Philharmagic 3-D. She loved the parades. Spectromagic was her favorite. Her absolute favorite part was the characters. They are all completely real at that age. She loved the character meals, and wanted to meet every character she saw at all of the parks. She knew who all of the characters were beforehand through a little set of 12 board books and the little golden books. She had a fantastic time. In fact, she did not want to go home. She would have thrown a fit about leaving until we reminded her that Santa would be coming soon, and she needed to be home for that.