What color flag means sharks?
What color flag means sharks? If sharks are present, red flags will be hoisted or a shark sighted sign will be posted. If you see a flag or sign at the beach and you're not sure of its meaning, ask a lifeguard for an explanation or look for an indicator key nearby.
What is the safe flag on the beach?
Red flag is high hazard meaning high surf and/or strong currents. Yellow flag is medium hazard meaning moderate surf and/or currents. Green flag is low hazard meaning calm conditions, exercise caution. Purple flag means dangerous marine life spotted.