If you would like to visit Yosemite National Park, please be aware:

You MUST reserve an entrance time into the park. This is due to the high volume of visitors into the park. Please reserve it as soon as possible, as they may run out early. Click on the link here to do so: Yosemite National Park, California - Recreation.gov

You also need to buy a National Parks Pass to enter: Fees & Passes - Yosemite National Park (U.S. National Park Service) (nps.gov)