animal ban beware black cat embargo inhibition injunction interdict oval pet prohibition proscription red round sign sphere suppression yellow dog insiders limited access no public access restriction staff staff only warning workers advice advising alert alerting appropriate-behavior appropriate-behaviour beach care communication concern danger dangerous dangers deep deep-water depth directions guidance information informing life-guards ocean patrols prohibited protect protection restricted restrictions risk risks safety signs swimmers swimming tides undertow water white area attention banned blue boundaries boundary cigarettes communicating direction directive distance distinctive entrance environment health health-risk limits location no-smoking not-allowed not-permitted painted permission-denied pollution shopping-center shopping-centre symbol unhealthy wording words behave behavior behaviour birds careful caution communicate ducks fatal feed feeding food inform message no-bread signage water-birds watrer-fowl call phone ring telephone campfire fire flame smoke penalties penalty thick thin alcohol announcement be-careful conditions consumption listen Look looking lookout no-alcohol no-swimming warning-sign access-denied boating boats directing helpful informative risky rocks rocky shallow symbols waterside