The Wonders of Cave Diving

What it’s like to swim inside of an iceberg the size of a small country? World-renowned cave diver Jill Heinerth led a team of divers inside the massive B-15 iceberg in Antarctica, and throughout her career has completed hundreds of other underwater dives across the globe. We speak with Heinerth about the beauty and dangers of cave diving and the importance of her work in helping scientists, biologists and researchers uncover more about the Earth’s oceans and ecosystems.