A green sea turtle near Lady Elliot Island. We were 10,000 feet above the Pacific, in a tiny Cessna that seemed like it should have been flying much lower than that, when the clouds cleared and Lady ...

Great Barrier Reef, Australia (CNN) — As the early-morning sun rises over the Great Barrier Reef, its light pierces the turquoise waters of a shallow lagoon, bringing more than a dozen turtles to life ...

This video shows clownfish moving through the tentacles of a sea anemone in the Great Barrier Reef, Queensland, Australia.

Recognised as a UNESCO World Heritage Site in 1981, the Great Barrier Reef is not only a major tourist attraction but also ...

With coral reefs and sinkholes, shipwrecks and submerged hotels, the sea is brimming with scenery that even landlubbers will ...

Custom-made virtual-reality technology is enabling a tiny production house to capture Australia’s staggering natural beauty ...

EDITOR’S NOTE: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

The massive floating sheet of volcanic rock was first spotted by sailors on August 9, days after an underwater volcano is believed to have erupted near the Pacific island of Tonga, according to NASA ...

In context: Located off the coast of Queensland, Australia, the Great Barrier Reef is the world's most expansive coral reef system, spanning more than 2,300 kilometers and comprising 2,900 individual ...

CNN witnessed bleaching on the Great Barrier Reef in mid-February, on five different reefs spanning the northern and southern parts of the 2,300-kilometer (1,400-mile) ecosystem. “What is happening ...