After a winter of unrelenting storms, Yosemite National Park is waking up, flaunting its natural beauty and moving full-speed into its busy season. The park expects a crush over the Memorial Day weekend, and visitors will navigate its trails, roads, campgrounds and attractions more easily if they know what's open, closed, fully booked, and to be avoided.
http://www.sfgate.com/bayarea/article/Yosemite-waterfalls-Memorial-Day-weekend-traffic-11173775.php