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Thursday, April 30, 2009

Spelunking...







The students really enjoyed exploring Thurston Lava Tube at Hawai'i Volcanoes National Park. Just the right mix of cool and spooky with a little dash of dripping water excitement. Formed as molten lava flows and the outer crust cools and slows down while the inner hot part still flows downhill. Eventually flattening out and forming lava tubes which can extend for miles and miles...

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