Glacier Point Professional Review and Guide
"The vista point is simply phenomenal. You can look straight down on the eastern half of Yosemite Valley (and Yosemite Falls) or east to Half Dome and the amphitheater containing Nevada and Vernal falls. The attraction is the enormity of the view, not just gushing waterfalls in spring, making this a must-visit location any time Glacier Point Road is open, usually mid-May–October. During the middle of the day in summer, Glacier Point is very crowded. It is advisable to visit early in the morning, when you can sit quietly and absorb the enormity of the landscape, or at sunset, the time of day with the best lighting. Once you have driven all the way to Glacier Point, you may want to include a second nearby trail in your itinerary. McGurk Meadow (Hike 12), Sentinel Dome (Hike 14), and Taft Point (Hike 13) are all excellent choices."