Discover the natural wonders of Yosemite National Park on a day trip from San Francisco by train and bus. You'll travel by Amtrak to Merced and then by YARTS bus to the Yosemite Valley. At the park, you have four hours to check out the sights on your own, such as El Capitan, Bridalveil Falls, Sentinel Rock, Half Dome, Clouds Rest, Yosemite Chapel, and Sentinel Bridge. Visit the Ansel Adams Gallery at the Yosemite Valley Visitor Center at Yosemite Village, or learn about the Ahwahnechee natives of the Yosemite area. Shuttle service can take you to Half Dome Village, Happy Isles, Yosemite Valley Lodge, or Mirror Lake. No strenuous hiking is necessary, as a 30-minute walk from the Visitor Center area can get you to Yosemite Falls (or the free shuttle). This is the ideal day trip if you want to explore Yosemite independently without a guide.