Whilst browsing a geography site for some other info, I noticed an interesting blog entry (on the same site) about a long river cave on the island of Palawan in the Philippines:

http://basementgeographer.com/puerto-princesa-subterranean-river/

The basic facts, of a 24km long cave system with an 8km river section, seem to be echoed in a Wikipedia entry:

https://en.wikipedia.org/wiki/Puerto_Princesa_Subterranean_River_National_Park

I wonder whether any Philippines specialists here can shed light on this cave?  It doesn't appear in the world's long caves list at caverbob.com  -  maybe because the explorers never submitted details, or little is known about it? Of course the caverbob site could be out of date, too.  Apparently.....

"In 2010, a group of environmentalists and geologists discovered that the underground river has a second floor, which means that there are small waterfalls inside the cave. They also found a cave dome measuring 300 m (980 ft) above the underground river..."

Somewhat vague but not uninteresting (and recent) details for a cave which should be in the world's top 200 longest caves.  Anyone any ideas on the source of data for the cave length, or the exploratory group involved?

Hugh

and of course there is a book ...

There is a rather embarrassing film too........ Extended considerably by the Italians since I was there in the early 80's with the Australians. Now a fairly major tourist attraction for the area.

JJ

rhychydwr1 said:

and of course there is a book ...

Click to expand...

That's helpful!.... :