The dome opens at the top into a wide shaft leading up to the ocean floor.
The water level was almost up to their shoulders as they waded and half-swam towards the wide shaft.
What you see is the lid of a wide shaft that has been cut about forty foot down into the chalk.
To get where I can spy on the teachers, there's a wide shaft, pitch black.
The big crate swung to a halt directly above the wide, yawning shaft.
Almost a hundred feet farther on, the tube came out into a wider shaft that ran north-south.
But only a surprisingly weak column of fire burst from the wide shaft.
Mr. Hussein's hide-out was a shaft just wide enough to hold a man.
Twice we descended spiraling stairs hanging in the sides of wide shafts.
Behind him, a wide shaft of light was shining toward the heavens.