GEAR UP
You’ll need the free Macromedia Flash 3.0 (or higher) plug-in to take part in the interactive dive.

LISTEN IN
Hear a National Geographic Radio Expedition, into a Monterey Bay kelp forest, in which National Public Radio’s Alex Chadwick takes the DeepWorker sub for a spin. (You’ll need RealPlayer 5.0 or higher.)

Photograph of USA Today staff writer Tim Friend in the DeepWorker submarine by M. Ford Cochran