How to Use "cavern" with Example Sentences

1. Enter a cavern or choose another way ?
2. Nobody ever stepped in this cavern .
3. Borgio verezzi cavern in italy was discovered by three young boys in 1933 .
4. After swimming through a small opening in the rocks at the base of a towering cliff , kopisch found himself in a large cavern where the water glowed , he would write , " like the light of a blue flame . " It made him feel as if he were floating in an " unfathomable blue sky . "
5. This is a large , hillside cavern about 40km ( 25 miles ) from the sea .