What is a sign that a swimmer may need assistance?

A key sign that a swimmer may require assistance is if they appear to be motionless in the water. When a swimmer is not making any movements, it can indicate that they are struggling to stay afloat or are in distress. Unlike active or playful behaviors, such as laughing and splashing, which suggest a swimmer is enjoying themselves and is likely safe, a motionless swimmer raises immediate concern. This could mean they have become tired, disoriented, or may be facing a medical emergency. Lifeguards and trained individuals are particularly vigilant for signs of distress like a lack of movement, as it can indicate the swimmer is unable to call for help or is in a critical situation that requires immediate attention.