noun
grotto
GRAH-toh/ˈɡrɑːtəʊ/
A small natural or artificial cave.
A small grotto beside the trail offers shade from the sun.

Etymology
The root meaning “to hide” produced an expression meaning “hidden vault,” which came to denote a vault or cavern. Grotto preserves the cave sense, especially for a picturesque retreat.
In context
Like um he said they were seers. Dragons in Greek means to see. >> Well, caves were very sacred places like grotto
More examples
- Water drips from the roof of the grotto.
- The gardeners built a stone grotto behind the fountain.
- A statue stands inside the church's candlelit grotto.
Forms
grotto · grottoes · grottos