Marine stingers warning sign on Myall Beach by Cape Tribulation, Queensland, Australia

advanced warning advice australian beach bright cape tribulation caution center color yellow colored coloured dangerous water diamond shape don't swim holiday destinations marine stinger no swimming ominous pacific ocean preventative prevention protect protection safety sign post square shaped warnings water safety yellow sign beaches cautious close up coastline colour yellow danger dangerous daytime half length half lengths horizontal jellyfish outdoors outside risk risky sign post sign posts signpost stock image stock photo stock photograph travel photo travel photograph travel photography travel stock travels warning travel travel destinations travel destination travel experience color image color colour tourism destination