The Half Dome trail is described as an "exciting, arduous hike" on the National Park Service's website. The full round-trip hike is 14 to 16 miles, with the rock formation rising 8,800 feet above ...

Half Dome rises to 8,800 feet (2,682 meters) above sea level. The hike is a 16-mile (26- kilometer) round trip with an elevation gain of 4,800 feet (1,463 meters). The last 400 feet (122 meters ...