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Kamis, 15 September 2011

SNORKELING

     
         Snorkeling is a great way to see life under water. You float on the top of  the water breathe through a snorkel. On end the snorkel tube fits in your mouth, and the other end sticks above the water. But you must be a good swimmer to do the snorkeling.
          Because snorkeling only requires basic equipments, most people find it easier to take up than scuba diving, which requires specialized equipments and training . The two activities differ in that snorkelers do not take air thanks underwater with them to enable them to breathe. Instead, snorkelers hold their breath while underwater and breathe only while at the surface.
          The primary swimming tecnique used by snorkelers is the free dive, also called a breath-hold dive. To make a free dive, snorkelers take a deep breath of air through at the snorkel, bend their bodies down at the waist, and kick their feed up. This actions forces their bodies underwater, and they can descend in a straight line.
          Once the diver begins to run out of breath, he or she swims back up to the surface. By exhaling, or blowing strongly, the diver clears water that has enterd the snorkeltube during the dive. The diver can then take another breath through the snorkel and resume floating at the surface without liftig the head above water.
          Without snorkel, the diver would bob up and down on the surface and be hit by waves while struggling to breathe; in addition, the diver might lose sight of underwater objects of interest. By using a snorkel and remaining face down, the diver can easily float overs the waves while continuing to breathe and maintaining focus on underwater objects.         




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