It is certain that many more miles of cave passages await discovery in the region.

The route displays perfectly the way that water used to flow through the cave passages.

Perry then later sketched the outline of the cave passage.

With packs of emergency supplies the three withdrew to the cave passage.

In those cave passages far from daylight there are rare helictites.

We may be crawling through some narrow cave passages, so make sure none of them are claustrophobic.

We went down every cave passage that looked like it might be worth following.

We might be passing an opening to another cave passage.

Phantom Springs has been explored down to 462 feet in water filled cave passages.