The innermost cavern contains a crystal-clear underground lake.

They had set themselves up at the base of a mountain, beside a small, crystal-clear lake.

The crystal-clear lakes and sand dunes are the highlights of this track.

Blue glass bulbs of varying sizes glistened like the moon against a crystal-clear lake.

It was crystal-clear lakes, exotic birds with elegant, colorful plumage.

The lovely, serpentine, crystal-clear lake makes an ideal overnight destination.

Reading it makes you feel the same way you do after a walk in the deep woods, or a swim in a crystal-clear lake.

The hot shuddering air made it look as if she were walking through a crystal-clear lake.

If you're feeling brave you can swim in chilly crystal-clear lakes or take a hike in the mountains.

It's a crystal-clear, secluded lake with a sandy beach, and the mountain-fresh water reaches a temperature that's perfect for swimming.