Which of the following best describes a risk factor for Recreational Water Illness (RWI)?

Consuming alcohol while swimming is a significant risk factor for Recreational Water Illness (RWI) because alcohol impairs judgment, coordination, and reaction time. When individuals consume alcohol, they may underestimate their physical limitations or take risks that could lead to accidents or drowning. Additionally, alcohol can lead to dehydration, making swimmers more vulnerable to the effects of swimming in potentially contaminated water.

Other factors, such as high water temperature, can certainly contribute to discomfort and health issues, but they do not necessarily relate directly to RWI itself. Chlorinated water is typically treated to reduce pathogens, making it generally safer. Swimming alone can increase drowning risk but does not specifically pertain to recreational water illnesses as much as alcohol consumption does. Thus, the consumption of alcohol while swimming stands out as a direct and avoidable risk that can significantly increase the likelihood of developing RWI or facing severe aquatic hazards.