To get an adrenaline rush!

Pelagic Drifter caught this beautiful shot of a tiger shark off South Africa on New Year's Eve. There are so many things I love about this image: I love the beautiful spottles on the shark. I love that there's a diver in the background -- which adds a lot of depth to the shot -- taking a photo of the shark. I love that there are 47 shades of blue in the image. And I love the forboding feeling I get when I notice that, um, another shark is circling. Look out behind you!

If you have any forboding underwater images, how about adding them to Divester's Flickr pool? If you do, we'll feature them on Divester.