Ice divers use a quadrat to study the density of creatures living on the underside...
Diving Beneath the Ice
The world beneath the Arctic ice is magical, but cold. Divers have to tolerate...
Whale Tracking Device
This radio device is used to track North Atlantic right whales. Suction cups hold...
Underwater Parks in 3-D
As I readied myself and my camera for a dive in Yellowstone Lake, the largest body...