Crypt Lake Trail is consistently ranked as one of the top hiking trails in the Canada Rockies. To reach the trailhead, you must first take a 15-minute ferry across Upper Waterton Lake. From there it is a 10.8-mile round trip hike to a sparkling turquoise lake cradled by horseshoe-shaped cliffs. You'll gain 2,300 feet along the way, passing waterfalls, crawling through a tunnel, and clinging... Read more.