Clearly Yosemite National Park has four roadway entrances and the car can contribute to messy traffic in summer and especially on weekends. Yes, maybe you should come sometime October through April instead, but we all know the realities of travel. So we want to help you make it easier talking about Amtrak, the free Yosemite Valley Shuttle bus, Yosemite Area Regional Transit System, GPS vs Google Maps, and using each entrance to your adventure benefit. Remember to leave early, especially weekends, from May through October when driving to Yosemite Valley. Those using JUCY vans from SF, LA or Vegas have special sites at the Bug.