Sistema Sac Actun is the world’s largest underwater cave system. Stretching an astonishing 215 miles, this submerged labyrinth of tunnels, caverns, and crystal-clear waterways is not only a ...

Three months ago, Xisco Gràcia experienced what he describes as every diver's worst nightmare - he found himself in an underwater cave, relying on an air pocket for survival. As hours turned into ...

Beneath the land surface of the Bahamas, the underwater caves known as blue holes stretch for hundreds of miles in all directions. Today, these labyrinthine passages host a variety of tiny sea ...

Prehistoric tools and ancient anchors were recently discovered during an underwater excavation of a 2,500-year-old shipwreck off the coast of Sicily. The Superintendence of the Sea (SopMare), a ...

A shipwreck discovered off the southern coast of Malindi is believed to be one that the voyager, Vasco da Gama used on his last journey to Africa. It could become Kenya's first-ever underwater museum.

A group of divers have connected two underwater caverns in eastern Mexico to reveal what is believed to be the biggest flooded cave on the planet, a discovery that could help shed new light on the ...

Concerns over the ship's preservation prompted the extraction. In 2022, a commission of experts from UNESCO confirmed that 'Mazarrón II' was at risk of disappearing if it remained underwater ...

The discovery of the interconnectedness of Sac Actun with another nearby cave system, Dos Ojos, confirmed it as the longest underwater cave system in the world. Divers from the Gran Acuífero Maya ...

The caves once existed above the water line, but were flooded when sea levels rose. Deep within these underwater caves are formations which can only be formed in dry caves - spectacular sculptural ...