Cavern, Tham Khoun Ex cave, Laos. 大山洞, Tham Khoun Ex 洞穴, 老挝/ 寮國

Enormous banks of terraced flowstone decorate the walls of the cave in many places. This slowly growing mound of white and orange calcite is one of the larger deposits along the river passage

Sunlight streams into the mist-filled fossil passage near the sink of the Xe Bang Fai River. This section supports a verdant garden of ferns and other low light plants
Laos kayakers capture Tham Khoun Ex cave's incredible rock formations | Daily Mail Online
Xe Bang Fai River.
Read more: http://www.dailymail.co.uk/travel/travel_news/article-3023009/Below-surface-Laos-Kayakers-capture-incredible-rock-formations-emerald-green-waters-immense-cave-system.html#ixzz3WB8oYLiX
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美侖美奐引人入勝 揭秘寮國的巨型河流洞穴(圖)_中國經濟網——國家經濟門戶
當地人稱此洞為Tham Khoun Xe
Xe Bang Fai River洞穴
http://big5.ce.cn/gate/big5/sci.ce.cn/yzdq/dq/dqxw/200811/18/t20081118_17419027_1.shtml

cavern是什么意思_cavern的翻译_音标_读音_用法_例句_爱词霸在线词典
n.大山洞； 凹处
v.挖空； 置…于山洞中
http://www.iciba.com/cavern/
Cave - Wikipedia, the free encyclopedia
A cave or cavern
http://en.wikipedia.org/wiki/Cave
洞穴 - 維基百科，自由的百科全書
http://zh.wikipedia.org/wiki/%E6%B4%9E%E7%A9%B4
Laos - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Laos
寮國 - 維基百科，自由的百科全書-老挝
寮國（寮文：ເມືອງລາວ，台灣、馬來西亞和新加坡稱寮國，中國大陸和港澳稱老撾）
http://zh.wikipedia.org/wiki/%E8%80%81%E6%8C%9D

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