What should a lifeguard do if they observe patrons engaging in aggressive dunking?

When a lifeguard observes patrons engaging in aggressive dunking, the appropriate response is to ask the patrons to stop and explain the risks involved in such behavior. This choice is important because aggressive dunking can pose safety hazards, not just to those involved but also to other patrons in the vicinity. By addressing the issue directly, the lifeguard not only helps prevent potential injuries but also reinforces the importance of safe behavior in the water.

In explaining the risks, the lifeguard educates the patrons about the dangers associated with aggressive play, including possible injuries like drowning, concussions, or other accidents that can arise from roughhousing. This proactive approach promotes a safer environment for everyone at the facility and fosters a culture of responsibility among the patrons.

Ignoring the behavior could lead to serious accidents and does not adhere to the lifeguard's primary duty of ensuring patron safety. Joining in might escalate the situation, creating additional risks and setting a poor example. Reporting to facility management is also a responsible action but may not be immediate enough to prevent an incident from occurring at that moment. Therefore, addressing the situation directly and educating patrons is the most effective and safe course of action.