article_snippet.sent: Laos is a popular tourist destination known for Laos beautiful scenery and ornate temples, however not many people venture below the surface and discover that what is underground is perhaps even more spectacular.
article_snippet.sent: With over 15km (nine miles) of awe-inspiring passages and wide expanses of water, it really is one of Laos' hidden treasures.
article_snippet.sent: There is even a vibrant forest thriving at the upstream entrance to the caves, the lush green colour contrasting with the  enormous white and orange banks of terraces flowstone that decorates the walls of the cave.
article_snippet.sent: What the explorers discovered about the little-known cavern was a vast river cave, which means a cavern with an active water source flowing through the little-known cavern. '
article_snippet.sent: This section, encrusted with delicate formations and not yet open to tourists, is one of several higher passages that lead to jungle shrouded entrances on .
article_snippet.sent: This gigantic section, is also not yet open to tourists, is one of several higher passages that lead to jungle shrouded entrances .
highlights_snippet.sent: Explorers can witness the incredible caverns, lake and even the vibrant forest at the entrance .
  