What is a common signal that a swimmer may be in distress?

A swimmer yelling for help and waving their arms is a clear indication that they are in distress. This behavior typically signifies that the individual is struggling, unable to stay afloat, or in need of assistance. Swimmers in trouble often exhibit panic, and their instinctual response includes calling out for help and making themselves visible to alert lifeguards or bystanders.

In contrast, a swimmer floating on their back might be resting or attempting to catch their breath, which does not inherently indicate distress. Swimming normally suggests that the swimmer is comfortable and capable, whereas a swimmer wearing a life jacket generally indicates that they are potentially safer or more confident in the water, as life jackets provide a level of buoyancy and support. Therefore, recognizing the behaviors associated with distress is crucial for intervention and ensuring the safety of swimmers.