What does the yellow flag signify at the beach?

The yellow flag at the beach signifies moderate surf conditions. This means that while swimming is allowed, beachgoers should exercise caution as the sea may have waves that are higher than normal or conditions that could pose a risk. Lifeguards use the yellow flag to alert swimmers that they should be aware of their surroundings, including potential hazards such as rip currents or changes in the water's power.

In the context of the other flags, high surf conditions would typically be indicated by a different flag, alerting swimmers that the waves are dangerous. The presence of a flag indicating no swimming allowed would convey an outright prohibition, which is more serious and distinct compared to moderate conditions. Additionally, strong currents often lead to warnings via flags specifically designed to highlight that risk, rather than simply indicating moderate waves. The yellow flag serves as a reminder to enjoy the water while remaining vigilant and safe.