The film - which took five years to make - discovers a superb conservation success story, where sharks are considered sacred.

Vasco da Gama was the first European to reach India by sea, linking Europe and Asia for the first time by ocean route, as well as linking the Atlantic and the Indian oceans entirely and definitively, and in this way, the West and the Orient. This was accomplished on his first voyage to India (1497–1499)

The ship, which sank in a storm in May 1503 off the coast of Al Hallaniyah island in Oman's Dhofar region, is the earliest ship from Europe's Age of Discovery ever to be found and scientfically investigated by a team of archaeologists and other experts.

From Churchill's blockships dotted along the rugged coastline, to dramatic battleships, the wrecks of Scapa Flow continue to fascinate and enthrall divers.

Sand tiger sharks, top predators that live in coastal waters off the Eastern United States, have experienced drastic population declines over the past several decades. Understanding how these sharks move and interact could help biologists better conserve this species and determine how vulnerable they are to human activities. During summer, the sharks congregate in the shallow waters of Delaware Bay but are highly migratory, travelling as far south as the Carolinas and Florida during the winter and early spring.