The tunnel is currently open while refurbishment works continue on the entrance shafts and domes.

If I am not mistaken, we arc still in the entrance shaft.

The entrance shaft stood just inside the gate to the huge park the Settlers had built over their underground city.

The original entrance shafts were 322 feet deep.

This time, though, the exit was a tunnel mouth, cut in the side of the cave approximately opposite the entrance shaft.

She was standing by the main entrance shaft to Settlertown, waiting for them.

The entrance shafts were fitted with steam-powered lifts for passengers.

No blasting was allowed to construct the entrance shaft.

The entrance shaft is 255 m deep, by far the deepest in Canada, and often sports a 20m long overhanging icicle.

Today only the upper parts of the entrance shaft are accessible.