Camp 4 in Yosemite National Park is a popular camping area for rock climbers and hikers. The campsite has no reservations and operates on a first-come-first-serve basis. There are 36 campsites available, and amenities include restrooms, picnic tables, and fire rings. The surrounding views are breathtaking, with stunning views of El Capitan and other granite cliffs. There are numerous hiking trails nearby, and rock climbing is a popular activity for visitors. The best time to visit is from May to September, with average temperatures ranging from 50-80°F.