Set foot on the Mist Trail, one of Yosemite National Parks most popular routes, during this 6 to 8-hour guided hike from Yosemite Valley. The vertical trail brings you to the base of Vernal Fall, then crosses the Merced River for postcard views before you ascend a steep, granite staircase alongside the 317-foot (96-meter) cascade. Be prepared to get wet on the way to the top! This seasonal tour operates from April to November.