Hi Sebastian!
Thank you for visiting the Moms Panel!
Your children will be delighted to ride the newly re-opened attraction
The Great Goofini, in New Fantasyland at Magic Kingdom park!
If they love Goofy, I would also recommend a character dinner at
Chef Mickey's at Disney's Contemporary Resort. This is a fun, lively dining experience where you will meet Mickey, Minnie, Goofy, Donald and Pluto, who will visit with your table for photos, autographs, and interaction with your family.
If you have any other questions, please come back and ask me - I would be happy to help you plan your magical vacation!