It does not surface again for 16km where Maligne Canyon improbably cuts its way out of the ground. The sinking river system is thought to be one of the largest inaccessible cave systems anywhere in the world.
But in winter, the bottom probably becomes an icy walkway, right? I mean the Maligne river. I would gladly venture in, walking along the frozen river beneath the high rocky walls and huge ice falls. It is probably a fabulous world.
Yep its frozen in the winter