Greenpeace is tracking the movement of whales to monitor their safety and help science. You can track the whales online using Google maps. From the Greenpeace whale tracking announcement:
Today we launched the Great Whale Trail, following the migration of humpback whales from the warm tropical waters of the South Pacific, where they breed, to the icy Southern Ocean around Antarctica, where they feed. And we’re doing it via satellite tracking and Google Maps. Nifty.
Video: The Great Whale Trail: meeting the tag team