Get ready for a truly humbling experience at the Athabasca Glacier, one of the most accessible tongues of the massive Columbia Icefield. From the parking area, you can take a short but steep hike of about 30 minutes over rocky moraine to reach the toe of this ancient river of ice—the sheer scale and deep blue crevasses are breathtaking. For an even more immersive adventure, you can join a guided tour to actually walk on the glacier itself or ride in a massive Ice Explorer vehicle right onto its surface.