Seatek

Follow a freshwater cave diver. A man knows hundreds of lemon sharks by number. Visit one of the most advanced virtual reality training simulators.

This episode explores the art of taking a giant 300-foot ship from shore to sea, where millions of dollars and thousands of man-hours hang in the balance.

Diving in an intricate cave system in Florida, scientists are finding a treasure trove of ancient bones from the Mastodon's era.

Travel with famed underwater cinematographer Al Giddings in a specially equipped photo-sub to shed a rare light on the Titanic!

Travel on a new, powerful class of icebreaker as it attempts a historical run at the North Pole. Visit the world's only full-time underwater colony.

This episode focuses on spear fishermen and the world's first invisible boat.

Gerald Kooyman and his sons study the incredible diving feats of the emperor penguin under the ice of Antarctica.

Learn how a fish that lives at 200 feet of pressure survives the journey to the surface and into your tank.

This episode features an underwater photo shoot with sharks and NASA tests a new underwater robot.

This episode focuses on Loihi, Hawaii's next island.

Scientists monitor El Niño from land, sea and space but still cannot predict its disastrous winds.

This episode explores mineral fields in the middle of the Pacific Ocean.

This episode focuses on tiny algae called marine snow that may hold the key to understanding the food chain for a part of the ocean.

Dive with a New Zealand team under ice too thick to crack!

Scott Carpenter, an astronaut and aquanaut, organizes the world's only underwater camp.

This episode focuses on a wreck site in New Zealand with a new breed of treasure hunter.

This episode focuses on underwater welding, the key to maintaining pipelines, bridges and ship repairs.

This episode features a geological expedition in the Gulf of Mexico.