Icefields Parkway Region Caves, Cliffs & Canyons

At 20 km (12.4 mi) of explored passages, Castleguard Cave is the largest in Canada. It is a limestone cave filled with unique cave features including long passages, stalactites, cubic cave pearls and invertebrate animals. The cave ends in a series of ice plugs pushed into the passaged from the icefield above. Because the cave often floods during the summer, this spot is best explored during the winter. Permission to enter this cave is required from Parks Canada.

A short ten-minute trail leads to the canyon, where visitors can view the Mistaya River, which has delicately sculpted this gorge, leaving many circular potholes in the canyon walls. The trail can be accessed 71 km (44 mi) north of Lake Louise, on the west side the Icefields Parkway.