A sight to behold: Half Dome under the stars. The light pollution from California's central valley attenuates the stars only slightly, and adds a colorful haze on the horizon. This vantage point can only be obtained through a serious hike, followed by a steep climb. Though hard to reach, this point, "the Diving Board", is well known. This location was immortalized in Ansel Adams 1927 photograph "Monolith".