We want you to dress casually and comfortably, but in keeping with our family—friendly atmosphere, and for health and safety reasons, Six Flags Fiesta Texas strictly enforces a dress code. Proper attire must be worn in the park at all times, including shirts and appropriate footwear. Clothing with rude, vulgar or offensive language or graphics is not permitted at any time (shirts cannot be turned inside out as a solution). Bathing suits may be worn only in the water park area. Park admission may be denied if clothing is deemed by management to be inappropriate.