No, no they are not. A cage diver on Mexico’s Baja coast had a close encounter with a 15 foot great white recently. The massive shark made a run at the diving cage and broke the bars, entering it and thrashing about. Luckily for this diver, he lived to tell the tale.
According to MythBusters, yes, yes they are!
Combat fishing. Sounds pretty cool, and it does often result in high catch rates, but man it looks awful. Combat fishing is setting up a large group of fishermen on both sides of a river, spacing them no more then 10 feet apart. I guess the idea is that with all this pressure, some one has gotta catch a fish. It goes against one of the things I love most about fishing, seclusion. I always avoid fishing where other people are!
What do you think, good idea or bad idea?