A blacktip shark roamed near unsuspecting swimmers in the waters off South Beach in Miami Beach, Florida.<br /><br />In the video, two swimmers are seen at the top of the screen, while the filmer captures a blacktip shark passing nearby beneath them.<br /><br />“The lifeguard told me they were blacktip sharks, which migrate along this coast at this time of year,” the filmer told Newsflare.<br /><br />The footage was shot on March 17, 2018.