What is the signal for a lifeguard to initiate a rescue?

The appropriate signal for a lifeguard to initiate a rescue is a verbal command. This method is effective because it clearly communicates the need for action to both bystanders and the individual in distress. A loud, assertive verbal command can cut through any surrounding noise, ensuring that everyone present is aware of the emergency and understands what needs to be done. This clarity helps to minimize confusion during critical moments when immediate response is required.

Using a verbal command also ensures that the lifeguard can direct other pool patrons or staff, guiding them to assist in the rescue or to clear the area, thereby enhancing safety. While other signals such as a whistle or hand signals can be useful in various contexts, a verbal command is particularly authoritative and directly addresses the situation at hand.