Activities of Yosemite
Yosemite National Park is open year-round, though certain roads close during snowy months, usually from November through May or June. Certain trails also close during winter, including The 4-Mile Trail and part of The Mist Trail.
Traffic congestion in the valley is heavy during the peak summer season (June to August), and a free shuttle bus system operates in the valley. Parking in the valley during the summer is often full. Amtrak and the Yosemite Area Regional Transportation System (YARTS) provide public transit into Yosemite from four gateway communities: Merced, Fresno, Sonora, and Mammoth Lakes/Lee Vining. The Merced route provides service year-round.
The natural and cultural history of Yosemite Valley is presented at the Yosemite Valley Visitor Center, the adjoining Yosemite Museum, and the Nature Center at Happy Isles. The parks' two National Historic Landmarks are the Sierra Club's LeConte Memorial Lodge (Yosemite's first public visitor center), and the Ahwahnee Hotel. Camp 4 is on the National Register of Historic Places.