Tuesday, during a trip on Walker's Dive Charters out of Riviera Beach, Florida, a group of scuba divers encountered a once-in-a-lifetime experience – a great white shark.The encounter took place near a spot known as the Breakers Reef, a mile offshore of the Breakers Hotel on Palm Beach.During the dive, a great white shark about 20 feet long slowly drifted by near the bottom, enabling divers to get photos and brief video.On average, female great white [...]