Toying with the idea of heading back to Yosemite and was wondering how hard it is to get a site in one of the First-Come-First-Served campgrounds in Upper Yosemite? We would be there somtime during either the last week of July or first week of August. The plan would be to get somewhere somewhat close the day before and then go in and grab a couple of sites (BIL&SIL would be going as well). I know it is prime time so not sure how feasible it would be . . .