what flags are on the beach?
['The Yellow Flag. Meaning: Medium Hazard. ... ', 'The Red Flag. Meaning: High Hazard. ... ', 'The Red Over Red Flag. Meaning: Water is closed to public use.', 'The Purple Flag. Meaning: Marine pests present. ... ', 'The Red Over Yellow Flag. ... ', 'The Quartered Flag. ... ', 'The Black Ball Flag. ... ', 'The Orange Windsock Flag.']