My Dad And I Reached the top of Half Domeback in 2008. This was such an amazing hike, long but totally worth it once you got to the top. If I remember correctly we took the longer hike and round trip was around 12 hours. I have done a few different hikes with my old man. Mount St Helens twice, Mount Adams, and Half Dome. You wouldn't know it but he had polio in his leg, which left his leg deformed. He does walk with a pretty cool limp LOL This old man never stops and never let polio hold him back.