Which of the following signals that a guest may need immediate assistance?

The indication that a guest may need immediate assistance is when they are struggling to stay afloat. This behavior is a clear sign that the individual may be in distress and requires help. Struggling is often characterized by erratic movements or attempts to keep their head above water, which can escalate quickly into a life-threatening situation if not addressed promptly.

Recognizing this behavior is crucial for lifeguards, as it poses a direct risk to the safety of the swimmer involved. The urgency to respond comes from the potential for drowning, making it imperative for lifeguards to have a keen eye for signs of distress in the water.

Other behaviors, such as laughing and splashing or swimming with a friend, generally indicate that individuals are enjoying themselves and are likely in control of their situation. Resting on the side of the pool, while it may indicate fatigue, typically suggests that the person is taking a break and does not necessarily imply that they are in immediate danger. Thus, the ability to discern the distress signs is essential to effective lifeguarding and ensuring guest safety.