If you're going for a scuba dive with a place called Captain Hook's Marina and Dive Center in Marathon, Florida, then you should expect something exciting to happen. Global Fishing Reports got just that when they encountered a "Mrate Mite Mmark," more commonly known as a "Great White Shark" when you're not screaming into a scuba regulator. See more encounters on Global Fishing Reports' Facebook page.
For more sharks, let's see what's happening with these divers. As they were surrounded by a school of tiger sharks, one of the divers momentarily forgot the number one rule: Never turn your back to a tiger shark. Once their back was turned, the shark started to move in. Luckily, another diver had his friend's back and directed the shark elsewhere.