As you glide silently over the quiet waters of Myst'ry River in a custom boat tour, the natural wonders of this subterranean world pass before your eyes. See rare blind fish and crayfish living in a world of perpetual darkness... where they developed eons ago and thrive yet today. On-board electric lighting suggests the adventure of early explorations as passages carved by endlessly-flowing waters are revealed. Your imagination will be stirred by the power and majesty which remained, for so long, unknown to man.