Underwater cave in Mexico reveals Mayan secrets

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Underwater cave reveals Mayan secrets Cave divers on Mexico's Yucatan Peninsula find evidence of a mining operation started 12,000 years ago.

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Is this the world's longest underwater cave? The cave is 216 miles long and could be the longest underwater cave system on the planet.

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Exploring what lies below Sudan's pyramids Pearce Paul Creasman, an underwater archaeologist, explored the murky depths of Sudan's pyramids.

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Underwater archaeologist unearths city's past Over the past decade more than 12,000 valuable artefacts have been found.

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Native American burial ground underwater Archaeologists uncover a Native American burial site dating back 7,000 years off the coast of Florida.

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Would you sleep with the fishes? Councillors are considering a proposal for an underwater graveyard off Australia's Gold Coast.

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Robo-boat could uncover ocean secrets By launching underwater vehicles in situ the boat will allow more time to survey the ocean floor.

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