Yosemite How Long To Stay

In my view you should stay in Yosemite for as long as possible but I know this is not a useful answer! The Park is vast and quite varied in terms of scenery and eco system. If you just want to have a look at the highlights of the Valley and catch the view at Glacier Point you would need most of two days. If you want time to go to see the Sequoia trees at Mariposa or the high country at Tuolumne Meadows you will really need to go into at least a partial third day.

Otherwise it really depends on what you want to do. If you want to take your time enjoying the scenery or are into hiking and want to do a few really good walks I would say 4-5 days would make a great visit.