Why might you need to walk or stand while scanning at a waterpark attraction?

Walking or standing while scanning at a waterpark attraction is essential primarily to enhance visibility and ensure the safety of all guests. Waterparks are designed with various features such as curves, play structures, and waterfalls that can obstruct the lifeguard's view. By moving around, a lifeguard can adjust their position to gain a better perspective of these areas, allowing them to effectively monitor all swimmers and identify any potential distress signals or emergencies.

This approach ensures that lifeguards can maintain constant vigilance over the patrons in their assigned area, providing a safer environment where they can respond quickly if any situation arises. While the other options may suggest certain aspects of lifeguard duties, they do not address the critical need for visibility and situational awareness that is achieved through scanning and positioning effectively within the unique layout of waterpark attractions.