Further upriver, Marie leads the way in a thrilling scramble though a maze of overground caverns.
Low-yield nuclear tests can be conducted in underground caverns in ways that make detection almost impossible.
This involves compressing air and storing it in large repositories, such as underground salt caverns.
He said local residents were concerned about the expulsion of brine from the underwater caverns.
There are 60 known caverns in the Naracoorte Caves Conservation Park, many open to the public.
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In the past year, he has doubled trafffic at Diamond Caverns and is gunning for more.
Thermal vents among the trees on the hillsides let off jets of hot steam from underground caverns.
This 2D puzzle-platformer is a wonderful spelunking space-adventure through the caverns of Mars in the year 2097.
Britain has much potential: natural salt caverns and depleted gas fields could store decades of emissions from Europe.
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M. has basked in the fame of nearby Carlsbad Caverns National Park, with its awesome underground stalactites and stalagmites.
Another man said a new attraction called Louisville Mega Caverns needed tour guides.
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Last year, he teamed up with four other cave-loving professional couples to purchase Diamond Caverns from a big resort company.
One answer is to use the energy to compress air, which can be squirrelled away in hermetically sealed underground caverns.
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During the ensuing 32 years, 726.6 million barrels of oil were acquired and pumped into caverns hollowed out in salt deposits.
In Kau, go caving at Kula Kai Caverns, hike to Green Sands Beach, and follow the rugged Road to the Sea.
Buy cheap land on city fringe, build cheap, superstore-size warehouses, stock dimly lit caverns with pallets full of products in bulk.
Experts say much of Florida sits on a system of limestone caverns which are subject to water erosion, causing them to collapse.
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In 2001 he acquired the Mont Belvieu assets, which reportedly include 30 salt dome caverns, the biggest NGL storage center in the world.
Wadi Rum is a varied desert landscape consisting of a range of narrow gorges, natural arches, towering cliffs, ramps, massive landslides and caverns.
"We say that there are fairies living in the caverns, and they put the lightning moss here to lure thieves away from their treasure, " says Marie.
Kitsch roars its dinosaury head at Grand Canyon Caverns, luring you 21 stories underground for an ubercool cavern tour and even an overnight stay.
The development in County Antrim will allow for storage for 500 million cubic metres of natural gas in caverns a mile under the lough.
If completed, imported natural gas will be stored in seven excavated caverns, allowing storage for enough gas to satisfy NI's energy needs for 60 days.
Imported natural gas would be stored in seven caverns or caves.
Fifty feet beneath the sea, Bimini offers an array of shipwrecks, shark dives, swim-through caverns and tunnels and colorful coral heads resting on the ocean floor.
They root around in mucky tunnels and caverns, greeted only by white speckled apparitions that look like holographic versions of the phosphorescent guy we saw earlier.
Characterised by porous limestone geology and countless underground springs, the region is a wildlife-filled paradise of turquoise rivers and lakes, forested hills and massive subterranean caverns.
The easy 2km trek passes through a series of isolated caverns once home to 15th-century hermits, which beg to be howled from. (Doing so produces a short, rich echo).
And rather than relying on salt caverns, SustainX uses standard steel pipes to store the compressed air, allowing its systems to be installed wherever they are needed.
Ambient, electronic and soothing, the score is a zen companion to your silent jetpack and the beautiful caverns, gathering your research and trying to find a way out.
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