Another underground river, and this one not of his world.

"How will we get through the lake and the underground river?"

There must be an underground river running through the mountain.

At times, like an underground river, it is even lost from sight.

"Oh, this is the other end of the underground river!"

The project to use the water from the underground river for irrigation.

The name later given to the underground river beneath the desert.

The cool, moist air of an underground river came up to meet him.

Very well, but the underground river is the source of that particular myth.

"Does the well lead to an underground river, is that where you came from?

At the far end of the chamber, an underground river ran off into darkness.

Looking back, I saw that the underground river was filling up the cave.

And darker, like an underground river, We will have our kingdom back.

From the depth below came a roaring sound, like an underground river.

He suspected she was remembering the underground river and what might have happened to her there.

This national park has many rare animals and underground rivers.

An underground river cut its way through the limestone to form the cave.

Just below them, to their left, ran the underground river, silent and swift.

Despite being free of the underground river, her body was still trapped in its panicked state.

The divers say they have investigated about half the underground river system.

There must be lots of underground rivers in the mountains.

I tell you truly, until the god's will is worked on the world, the underground rivers cannot flow.

A cave, then, possibly with a spring or underground river nearby.

I keep thinking we were in an underground river, or something about rocks that walked."

Most lie even deeper and are served by underground rivers.