I'm planning on going there some day and I would like to know how much days would I need to explore most of what the National Park has to offer! Thanks.
I would give yourself at least 3 full days to explore, 4 or 5 would be better....
1) An all day hike in Yosemite Valley (California)
2) A day out of the valley with a drive through the Tuolumne Grove of Giant Sequoias Area
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I agree with the "at least 3 day" rule. I tried to do it in one day… biggest regret. If you want to do some serious hiking and exploring, spend more than three. Don't forget to swim in the river. Yosemite is the type of place that leaves you in awe. I found myself whispering because it's so powerful.