Undersea Explorer I

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This nature series takes you beneath the surface of the ocean and into some of the greatest aquatic environments of the world. Discover mysterious marine locales and remarkable coral formations. Visit the exquisite Galapagos Islands and learn how this rich ecosystem is under attack. Enter an extensive system of underground caves in Acumel. And explore the Canadian government's efforts to develop an ambitious artificial reef project. With breath-taking underwater photography, this series reveals the many facets of this dangerous and fascinating kingdom.

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Shark Encounters

Recreational shark encounters are now one of the most popular attractions in scuba diving. (1 of 13)

The Gales of November

In the cold depths of the Great Lakes lie the remains of thousands of shipwrecks, some of which have been underwater for hundreds of years. (10 of 13)

Sea of Steel

In the 1990s, three large naval vessels were intentionally sunk off the coast of BC as part of the world's most ambitious artificial reef project. (2 of 13)

Treasure Hunters

Follow treasure hunters as they search for lost ships, and learn preservation techniques for artifacts and treasure coins. (3 of 13)

Galapagos

The magnificent underwater world of the Galapagos Islands, including remarkable encounters with hammerhead and whale sharks.

Giants of Socorro

The remote Socorro Islands lie 250 miles south of Mexico's Baja Peninsula and are home to an astonishing array of marine life.

The Coral Reef

Expedition divers travel to the Cayman Islands to explore the Cayman Trench and its nocturnal residents.

Lagoon of Lost Ships

A legacy of WWII, the Katsuragisan Maru lies at the bottom of Truk Lagoon, one of over 50 Japanese warships sunk during Operation Hailstone. (7 of 13)

The Caves of Akumal

Below the surface of Mexico's Yucatan Peninsula lies the world's most extensive collection of underground water-filled caves. (9 of 13)

Saturday May 17, 4:00am
Shark Encounters

Recreational shark encounters are now one of the most popular attractions in scuba diving. (1 of 13)

Saturday May 24, 4:00am
Sea of Steel

In the 1990s, three large naval vessels were intentionally sunk off the coast of BC as part of the world's most ambitious artificial reef project. (2 of 13)

Saturday May 31, 4:00am
Treasure Hunters

Follow treasure hunters as they search for lost ships, and learn preservation techniques for artifacts and treasure coins. (3 of 13)

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