As it is said, "A river cuts through rock, not because of its power, but because of its persistence." Did you know it takes a long process for a cave to be created? Artlish Caves is no exception. It is the largest active river cave in Canada, and the running water is why these series of caves were carved out from the ground, which is still happening. While you are inside the caves, sharpen your eyes to find bats, spiders, and other creatures in the darkness.