National Geographic: Mysteries Underground

Topics: Cave, Geography, National Geographic Society Pages: 2 (563 words) Published: October 8, 1999
National Geographic: Mysteries Underground

The video I reviewed was a National Geographic film called Mysteries Underground. This video was about extraordinary sites there are to see in underground caves. You traveled along with cave explorers and got to see all the beautiful untouched natural formations such as gypsum chandeliers, gnarled calcite columns, and jewel-like lakes. It showed and talked about all the careful proceders the cave explorers go through. It also talked about how the formations were made over such a long time.

I learned many interesting things that would never seem possible. In the world's new most exotic ,Lechuguilla, cave there lied water so clean and clear that the cave explorers were forced to take all there clothes off before they swam acrossed it because the littlest dirt from any clothing would contaminate the pureness of the water. All the cave explorers are very cautious as to what they touch or where they step because some of the crystal formations are so fragile that the slightest vibration from a voice or a footstep could ruin millions of years of forming. In some parts of caves there are giant and very smooth ice formations that must be slid down very carefully because if they are not taken cautiously you will pick up to much speed while sliding and finally hit some kind of stone wall or something. One lady was not careful enough and boy did she pay. She was only a mile and a half or so in the cave and she broke her leg. It took almost five days to get who to the surface of the cave where she could be attended to. Also I found out that caves were much larger then I had originally thought. The largest cave now, Mammoth Cave, is over 200 miles long. And if you are exploring a cave being miles and miles from the entrance it is very important that you be careful because if you break your leg that far from the entrance it would probably take months to get you out safely. One safety precaution I learned was that...
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