Orange City, Florida, is home to a number of caves that attract scuba divers. But one, um, adventurous teenager named Taylor Smith likes to freedive in the area's cave systems. According to Smith, "I like feeling like I went down there with nothing. It's a lot more hard-core (than scuba-diving)." Dude, that's so gnarly. But I have one thing to say about that: being alive is a lot more hard-core than than being dead.

While some freedivers look for underwater pockets of air so they can prolong their dives, park rangers discourage this practice. In fact, in June, you might recall, Smith tried to breathe from a pocket of air that was composed largely of carbon dioxide and suffered a seizure on his way to the surface. With the help of other divers, Smith's brother Wesley dragged his unconscious brother from the water and immediately began CPR -- which saved Taylor's life -- but the stunt will keep him out of the water for six months.

Taylor's mom, Diana, is a registered nurse and an avid scuba diver. I can't imagine why she would condone Taylor's behavior. Put simply, to echo Scuba Geek, "I can't imagine anything more stupid than freediving in an overhead." Considering the danger-level of this hobby, it's likely that his freediving days are numbered.

Way back in January, we told you about extreme freediver Daros Gray and his plan to break the record for freediving beneath the Arctic polar ice. This week, Gray -- who can hold his breath for almost six and a half minutes -- grabbed his wetsuit and headed to Lake Tornetrask, the deepest lake in Sweden (about 160 miles north of the Arctic Circle). His plan: to swim 300 feet in the fr-fr-frigid waters without the aid of scuba equipment.

Unfortunately, despite his preparations and best intentions, Gray's hopes were dashed. Ironically, it was not because the water was too cold. Rather, he couldn't achieve his goal, because the ice was too thick. After five days of cutting, his support crew had not cut an appropriate channel in the ice for Gray to swim through.

Gray plans to return in the future and try again. Next time, however, he plans to bring his wife's hairdryer with him to help thaw the ice.

A body of the free diver washed ashore off Maui.

Anthony Moore of Sunnyvale, CA, was failed to return Thursday night from his dive off Maui. A search was conducted but nothing was found, until the next morning when a kayaker discovered "parts of Moore's body, which had apparently been attacked by a shark", something that you don't want to find on a nice paddle around Maui.

It's unclear if he drowned, perhaps from shallow water blackout or was attacked by a shark that resulted in his death. Sharks will scavenge, so the shark bites could possible have been postmortem.