I've done some backpacking in Yosemite and up to the Vernal Falls right before before Half Dome part of the trail. It would be a cool hike to do the whole Half Dome tour, but seeing pictures of the all those people on the cables make me a bit leery on that one even though they have cut back on how many they let on there with the permit each day. I've heard about some people panic jams on the cables when the weather gets bad and the cables and granite start to get slippery and lightning starts firing off. Most of the injuries and deaths have happened due to weather there. I prefer more solitude when I'm backpacking but I do think it is a cool looking hike.