Another entrance to the Gorge caves, known as Entrance No. 3, leads first to a small cavern, reached by a ladder from above. A very narrow passage, which must be negotiated by means of a rope, brings you to a ledge overlooking a sheer drop of sixty feet. From one of the passages leading to the Pit, a cavern is reached, named the Turbine, owing to the noise from waterspouts resembling the sound of water falling into the pit of a turbine. Farther on is the Art Gallery, so called from the "florescent designs of overlying carbonate of lime, in colour from cream to delicate salmon." Beyond the Art Gallery, a long passage brings you to a narrow twisted opening named the Gimlet, and to two ancient potholes leading to unknown depths, and "profusely ornamented with florescent incrustation." One of these is named the Dome, from its perfect form. A passage from the other leads to the Judgment Hall. In this section of the Gorge Caves the subterranean river crosses the main passage some depth below, and its roar is now heard from the right side. A narrow opening leads to the Carbonate Grotto which has some fine floral designs. Another passage of 130 feet brings you to a crack in the wall, from which a descent of 57 feet leads to the Judgment Hall mentioned before. This is the largest of the caves, 200 feet wide and from 40 to 50 feet high. From the Judgment Hall, other passages lead to the White Grotto, so named from the beauty and delicacy of its ornamentations; and the Bridal Chamber, also covered with floral designs. The Caves of Nakimu are of peculiar interest to the geologist, as the limestone of which they are composed is rare in the Selkirks. The subterranean stream which forms the principal feature of the caves is also a rare phenomenon either in the Rockies or Selkirks. There is some difference of opinion as to the origin of the caves. The passageways are unquestionably due in a measure to water-erosion, but Mr. Wheeler, who has given the matter much study, is convinced that a more potent agency has been at work. "It is not unreasonable to assume," he says, "that a seismic disturbance once shattered this bed of crystalline limestone and precipitated Cougar Creek into subterranean channels which the water and time have enlarged to their present size; moreover, that subsequent shocks are responsible for the large quantities of débris that litter their floors. This hypothesis would explain the crack of the Gorge and similar chasms beneath the surface." [Illustration: THE WEIRD CAVES OF NAKIMU. _Canadian Pacific Railway Company_] IX MOUNTAIN CLIMBING AND CLIMBERS