This hike off Glacier Point Road ticks off two of the most incredible viewpoints in Yosemite. The loop starts by heading towards Sentinel Dome, a huge granite dome that sits high on the valley walls.

on Sentinel Drive (near Cook's Meadow) from shuttle stop No. 11. To hike Half Dome, the trail is about 14 to 16 miles long and features elevation gains totaling 4,800 feet (for reference ...