What does two short blasts of a whistle indicate?

Two short blasts of a whistle are a recognized communication signal among lifeguards, primarily used to call for the attention of another lifeguard. This signal serves as a quick way to convey the need for assistance or alert a colleague to an important situation without causing alarm among pool users. Clear and concise communication is crucial in a lifeguarding environment to ensure safety and effective coordination among the lifeguard team.

In the context of the other choices, the signals used for emergencies or breaks typically differ from those designed for inter-lifeguard communication, ensuring that lifeguards can quickly convey their needs without misunderstanding or disrupting the public. Understanding these signals and their specific meanings is essential for efficient lifeguarding and maintaining safety in aquatic environments.