Video: Meet "Deep Blue," the Largest Shark Ever Captured on Film

If you're one of those people who is already a little trepidatious about getting into the ocean, than you'll probably want to avoid watching this video. It features a shark that has been dubbed "Deep Blue" who just might be the largest ever captured on film. The massive creature is over 20 feet in length, and is believed to be 50 years old. Its size is put well into perspective thanks to the human observers nearby who are both in and out of a protective cage.

Seeing this thing swim by would have to be absolutely awe-inspiring and frighting at the same time. It is indeed an incredible sight to behold. I definitely think we're going to need a bigger boat.

Video: Winter Cave Diving in Sweden

First discovered back in 1979, the Dolinsjö Cave is located underwater, making it extremely difficult to explore. But each year, a team of divers visits the cave during the winter, continuing to map out its depths in an attempt to determine just how large it actually is. So far, they've gone as deep as 1.7 km (1.05 miles), and have yet to locate the end of the cave. In this video, those divers take us along on one of their expeditions, giving us a look at the efforts they make in the name of exploration. It is a fascinating experience for sure, and I give these men a lot of respect for what they do. It can be very dangerous, and yet they press ahead into the unknown none the less.

Underground Movement: Cave Diving in Jämtland from Klättermusen on Vimeo.