Go to Iceland to Walk in Lava Tubes
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Walk through lava tube caves, or volcanic veins, in Iceland. They will lead into volcanic chambers with stalagmites and stalactites. Watch out for sink holes.
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Iceland, Geothermal System and Hellisheidarvirkjun Power Plant Tour
/I toured Hellisheidarvirkjun (Hellisheidi for short) Geothermal Power Station on Hengill Volcano in south Iceland, about 20 minutes southeast of Reykjavik. The tour was an engineer's nirvana. The plant uses the hot water from directly out of the ground to generate electricity. The excess hot water is then circulated throughout the countryside.
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