Six Flags St. Louis is Missouri’s largest, most exciting theme park! If your family is looking for things to do in St. Louis, Missouri, you’ve come to the right place. With dozens of rides and attractions, including soaring rollercoasters and enchanting children’s rides for families with young children, live entertainment, classic dining options, acclaimed holiday shows from around the world, and special events like Fright Fest and Holiday in the Park, there’s always something new and exciting happening in the park!