Which of these is a sign of swimmer distress?

Flailing arms and legs are significant indicators of swimmer distress. This behavior often reflects panic or a struggle to keep oneself above water. When a swimmer is in trouble, they may lose their ability to swim effectively and start to thrash about in an attempt to stay afloat.

Recognizing this sign is crucial for lifeguards and those monitoring swimmers, as it often precedes more severe situations like drowning. In contrast, the other behaviors listed, such as making loud noises, relaxed breathing, or smiling and chatting, do not typically indicate distress and can often be signs of a swimmer who is comfortable and safe. Understanding these differences is vital for ensuring swimmer safety and prompt rescue actions when necessary.