Tham Khoun Xe is a river cave carved by the mighty Xe Bang Fai River and is located in Hin Nam No National Protected Area in central Laos. At 7 km long and with an average width and height of 76m (249 ft) and 56m (184 ft) respectively, it is considered one of the largest active river caves in the world.
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Πέμπτη, Φεβρουαρίου 11, 2016 |
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