Didn't have retards dragging their fuggin dogs everywhere they go back in the 70s either. lol
^^^ This X 1000.
The adventure park 100% owns the liability for this. A lawyer letter to them is in order asap and if you can drive to it, I’d be letting them know in person your version of things...assuming the dog owner gave a sanitized, “it was just a nip” version of it to the owner.
You said you found proof of the dog being vaccinated for rabies. I would make sure of that.
Get as much of this into the public record as possible. I don’t know that all parties needed to be sued into oblivion, but that dog owner needs to be punished.