The white flag with the black shark indicates that a shark has been seen in the area and the beach is closed. The day before there had been an attack on a surfer. The detailed report is published here on Shark Spotters. The surfer escaped with relatively minor injuries compared to the size of the shark. One surfer was initially unsure whether the animal was a shark or a whale, but stated that b the size leaned toward thinking it was a whale. This is the first attack in Muizenberg, Cape Town, South Africa in ten years much of this credited to the success of http://sharkspotters.org.za/.