It has also been reported to live in underground cave systems.

You have the same thing again when he leaves his underground cave for the open.

They fly to the party which takes place in a big underground cave.

The area is known for its underground caves and springs.

It can go through a series of underground caves and may appear on the surface again.

The Lost numbers can be seen on a hatch in the secret underground cave.

The temple is built on two levels and also includes an underground cave.

She was listening with great interest to what the Inspector had to tell them about the underground caves.

And Earth itself had retreated to its underground caves of steel.

It was like staring into the depths of an underground cave.

She was described as "looking pale and thin" after coming out from the underground cave.

Unfortunately the count's boat never made it out of the underground cave.

If it did happen, there are underground caves that they can go into and live in until the disease dies out.

At first glance it appeared to be the entrance to an underground cave of some kind.

A tunnel at its bottom leads to an underground cave and lake.

This wasn't a true cave, like underground caves Richard had encountered before.

One possible location where life may flourish is in underground caves on Mars.

As more and more people move to Florida, they use up the water in the underground caves.

"A secret underground cave where they used to meet when they were younger!"

"What about the water tunnel to the underground cave?"

The kund lies in an underground cave and is about 30m from the mouth.

The planet has streets full of merchants and extraordinary underground caves.

Underground caves are to be found here, although less impressive than those at Padirac.

You're asking me to accept that the whales were protecting an underground cave?

The corridor was widening, spreading into a huge underground cave.