What is the significance of a lifeguard signaling with crossed arms?

Signaling with crossed arms is a recognized gesture used by lifeguards to communicate important messages to swimmers. When lifeguards cross their arms, it typically indicates a need for all swimmers to exit the water. This action serves as a clear visual cue for swimmers that they should leave the pool area immediately, often due to safety concerns such as potential hazards or necessary pool maintenance.

This gesture is crucial for ensuring the safety of individuals in and around the water, as it effectively conveys urgency and the need for compliance without requiring verbal communication that may not be heard over the noise of splashing water and conversations. Therefore, the significance of crossed arms is directly linked to the lifeguard's role in maintaining a safe environment for all patrons.