Perhaps the most recognizable image of Yosemite is Half Dome. Visible from many positions around the park, Half Dome's sheer face was carved by the same glaciers that created the magnificent Yosemite Valley. While any view of Half Dome is beautiful, perhaps the best is from its top.
If you plan to hike Half Dome, you must have a permit. For day hikers, permits are available by lottery in March, with a limited number available two days in advance. Backpackers, including those who want to camp in Little Yosemite Valley, should request a Half Dome permit with their wilderness permit.