Posted in Web Tours – Yosemite National Park (U.S. National Park Service) August 6, 2025 Grand Tour is a full-day tour (~ 8 hours) that visits Yosemite Valley, Glacier Point and the Mariposa Grove of Giant Sequoias. This tour operates during the late spring through summer (May – September, conditions permitting). https://www.nps.gov/yose/planyourvisit/tours.htm