What is the purpose of a lifeguard maintaining constant surveillance?

Maintaining constant surveillance is essential for lifeguards as it directly correlates to ensuring safety and preventing drowning incidents. This proactive approach allows lifeguards to observe activities in the water and identify any potential hazards or emergencies before they escalate. By closely monitoring swimmers and the surrounding environment, lifeguards can quickly respond to any signs of distress, thereby reducing the risk of accidents and promoting a safe aquatic environment. This behavior establishes a layer of protection for all patrons, as the lifeguard's vigilance enhances overall safety and contributes to immediate intervention if required.