Was on a ten day trip in Big Sur decided to take a break and spend a few days in Yosemite. Drove through the night and showed up at Camp 4 at 2am. We were the 20th person in line Waiting for a site to open the next day. Luckily we ended up with a site in the shared space pretty much have to hope there are enough people leaving or you’re out of luck. Ranger comes down in the morning and will let people in based on availability.