seema_ahmad

Hi Nhessy :-):
          Thank u so much for reading LOVE, LUST 'N GEOLOGY & for ur votes - I really appreciate it :-)! I see u're from the Philippines - I have a really good friend from there :-).

seema_ahmad

@NhessySakawaMaePedro 
            I would think that they have to be very careful, from a safety viewpoint, so it makes sense that only a portion of it is open.
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Nheshilera

@seema_ahmad  its around 8kilometers long , only 1kilometer is open for tourists ,
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seema_ahmad

@NhessySakawaMaePedro 
            Wow, the underground river sounds really impressive :-)! I'm guessing that it runs thru limestone, which is more easily eroded than other rock types. I had never heard of it. Being 1 of the 8 wonders of the world, I should have! Thank u for educating me about it :-). I'll mention it to my friend.
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