You will be able to take your camera on the rides. I see hundreds of people wearing their large camera, without any case, every day. Some of the ride vehicles have pockets that you can store an item in during the ride. You will have to decide if it is safer to stash it in a pocket, or keep it on you. On Tower of Terror, make sure you keep your hand on it so it doesn’t “float”up and hit hard when it comes down.