Was The butterfly Girl at the dancing waters fairground attraction in l964 a cryptid or a fake give your reasons?

It was probably a fake. a real girl cavorted with trick butterfly wings and in the low-pressure chamber- something like carnival ( space walks _ which are pneumatically filled, now this is done with tennis courts) there was a different sort of atmospheric gradient and she could hop up and down giving the illusion of flight. I never saw the act which was part of the Dancing Waters Fairground attraction in l964. ( not a ride).