Half Dome is a granite dome in eastern Yosemite Park, named after its distinctive formation. It is one of the most iconic and popular features of the park, alongside El Capitan. It has a sheer northwest face whilst its other sides are rounded and able to be hiked, with the assistance of installed cables. For those looking to follow this route, it typically takes 10-12 hours to hike to the summit from the valley floor, and is often combined with overnight camping in Little Yosemite Valley. The typical route is known as 'The Half Dome Cable Route' which runs from the valley floor via the Mist Trail, with just under 1.5km of elevation gain. It should be noted that anyone looking to do so must obtain permits prior to entering the park, non-permit holders may only go as far as the base of the sub-dome.