There is a cave in the world which has its own ecosystem. This cave has a forest, river, rocks, trenches and much more. It was declared the world's largest cave in 2009.

This story appears in the March 2019 issue of National Geographic magazine ... They had crawled into Cave of the Winds, deep inside a cave system known as Clearwater, where they would search ...

This story appears in the January 2011 issue of National Geographic magazine ... sitting alone in the blackness along the wall of the cave. “Carry on mate,” growls Sims.

Narrator: The cave William and Emily are visiting was ... This clip will be relevant for teaching Geography. This topic appears in KS1/KS2 in England and Northern Ireland, Knowledge and ...

After the cave has been opened by the action of water, creation of some of the other features of the Marble Arch caves begin. Water, containing dissolved limestone (calcite), drips or runs from ...

Ron Allum is a pioneering cave diver and inventor who originally started out as ... of Talking Australia is hosted by Chrissie Goldrick (Editor-in-chief at Australian Geographic) and produced by Ben ...