Tanya Sheffield injured her foot, knee, and hip at a Jekyll Island water park when she came out of a slide and said her foot struck something hard in the landing area, though she could not identify exactly what. The issue was whether she had evidence of a hazardous condition and the park's superior knowledge of it. The Court of Appeals of Georgia affirmed summary judgment for the park authority. It held that Sheffield could not recover because she could not identify the cause of her injury or prove that the defendant knew of any dangerous condition related to the slide exit or water level. The court's reasoning emphasized the absence of evidence of a defect, the lack of proof of the park's superior knowledge, and inspection records showing no unsafe condition, which made it unnecessary to resolve the park's alternative assumption-of-risk defense.