SUNNY ISLES, FL - JULY 11: People swim in the ocean off of Haulover Beach where a rare shark attack occured on Sunday afternoon on July 11, 2017 in Sunny Isles, Florida. Miami-Dade Fire Rescue officials said they believe the person bitten, Elvin Lanza, was bitten by a 4- to 5-foot bull shark. He spoke to the media today after being released from the hospital with 29 stitches and seven staples in his legs. (Photo by Joe Raedle/Getty Images)