1
Half way up there is a natural grotto, which can only be reached by water.
2
It was a natural grotto formed by water, but which earth, in its turn, had undertaken to embellish.
3
Instead, she slid off the bench and walked casually toward a natural grotto whose emptiness reflected her footfalls.
4
In the rock at the foot of the mountain, there are several elegant niches, with Greek inscriptions, besides a large natural grotto.
5
The room was actually a natural grotto with stalactites hanging from the ceiling and, at its centre, a natural pool of still dark water.
6
The top of the cliff was close over their heads, and behind them was a natural grotto scooped concavely out of the solid rock.
7
His joy was great when he discovered a natural grotto, formed by the immense blocks of granite which made a foundation for the rising ground.