Honestly I don't know...but I don't see why not,,,you would be the one at risk of losing it...you might want to call them first...
You would need to ask in guest services. I don't see why not as long as it is secured.
I know some of the rides specify that all loose articles are secured with a non-rider or are in a locker or they encourage you to put your belongings in a cubby at the end of the ride. I would imagine that it depends on the ride. If they feel that you could injure someone if you dropped your camera, they might not let you do it. But as someone said above, if it is attached securely, I don't see why not.
Thanks! Your answer is awaiting moderation.