TOPP (Tagging of Pacific Predators) has a cool little website where you can track the movements of the various sharks, turtles and seals they've tagged. On the left hand side you can choose areas or specific types of animals to track.
The Monterey Bay Aquarium recently tagged a baby Great White so they can more carefully track its movements. I say, tag 'em all! Then give me a GPS with a tracker thingee. Then I will decide whether to get into the water or not.