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Overview
Yosemite National Park sits in the central Sierra Nevada mountains of California and covers roughly 1,169 square miles. It was designated a national park in 1890 and is a UNESCO World Heritage Site, recognized for its dramatic glacially carved valley, ancient giant sequoia groves, and exceptional biodiversity.
Yosemite Valley is the focal point for most visitors — a seven-mile-long, roughly one-mile-wide valley flanked by vertical granite walls reaching 3,000 to 4,000 feet. El Capitan on the north wall and Half Dome to the east are the park's most recognized landmarks. Beyond the Valley, the park includes subalpine meadows, high-country wilderness accessible from Tioga Road, and the Mariposa Grove of giant sequoias near the south entrance.
The park receives roughly 3 to 4 million visitors annually, which creates real congestion challenges, particularly in Yosemite Valley from May through August. Understanding access logistics before you go is as important as planning what to see.
Before You Go
Park Entry and Reservations
Yosemite requires a vehicle reservation or timed entry permit during busy periods, typically spring through fall. These sell out quickly and the system changes from year to year. Check the official National Park Service website (nps.gov/yose) well before your trip for the current reservation requirements, as policies are updated regularly.
An America the Beautiful annual interagency pass covers entry fees at Yosemite and is worth considering if you plan to visit multiple national parks. Verify current admission fees on the official site.
Permits for Day Hikes and Overnight Trips
The Half Dome day-hike permit lottery is required to hike the cables section and is extremely competitive. Applications open months in advance via recreation.gov. Overnight wilderness permits are required for all backcountry camping; these also sell via lottery and walk-up quotas. Plan accordingly if either is on your list.
Visas
Entry requirements depend on your nationality. For guidance specific to your situation, check TravelerPulse's Visas section and the official U.S. Customs and Border Protection website.
Packing Essentials
- Layered clothing: temperatures swing dramatically between valley floor and high elevations, and between morning and afternoon
- Sun protection: high elevation means intense UV exposure
- Bear canister: required for backcountry trips; canisters can be rented in the park
- Traction devices (Microspikes) in shoulder seasons if visiting high-altitude trails
Getting There
By Air
The closest major airports are Fresno Yosemite International (FAT), roughly 65 miles from the south entrance, and San Francisco International (SFO) and Merced Regional Airport, each farther away but served by more carriers. Driving from the Bay Area takes approximately three to four hours under normal conditions.
By Car
Most visitors drive. There are four entrance roads into the park: Highway 120 (Big Oak Flat and Tioga Road from the east via Lee Vining), Highway 140 (El Portal — the most accessible year-round route), Highway 41 (Wawona from the south, near the Mariposa Grove), and Highway 120 East from US-395. Tioga Road (Highway 120 through the high country) is typically closed from November through May or June depending on snowpack; verify its status before planning a cross-Sierra drive.
By Bus
YARTS (Yosemite Area Regional Transportation System) operates bus service from several gateway communities including Merced, Mammoth Lakes, and Sonora. YARTS buses are permitted to enter the park even on days when vehicle reservations are required for personal vehicles, making them a practical option during peak season. Check yarts.com for current schedules and fares.
By Train
Amtrak's San Joaquin route connects the Bay Area and Southern California to Merced, where YARTS bus connections to Yosemite are available.
Getting Around
Free Valley Shuttles
Yosemite Valley Shuttle buses operate on a loop between key stops including Yosemite Village, Curry Village, the Valley Visitor Center, trailheads, and lodges. During peak season these run frequently and using them instead of driving reduces congestion considerably. Parking in the Valley is very limited; arriving early or using the shuttle from day-use parking areas is strongly advised.
Hiking and Cycling
Over 800 miles of trails exist within the park. A network of paved bike paths runs through Yosemite Valley, and bicycles can be rented at Curry Village and Yosemite Valley Lodge (verify availability and hours locally). Bikes are not permitted on unpaved trails.
Driving Within the Park
Some areas — including Mirror Lake Road — are closed to private vehicles seasonally. Parking at popular trailheads fills before 9 a.m. on busy days. Cell service is limited throughout the park, so download offline maps (Yosemite's official app or AllTrails) before entering.
Where to Stay
Inside the Park
Del Norte Aramark (Aramark) manages most in-park lodging, ranging from the historic Ahwahnee Hotel to canvas tent cabins at Curry Village and standard motel-style rooms at Yosemite Valley Lodge. All in-park accommodations book out months to over a year in advance for peak dates. Reservations open on a rolling basis; check the official concessioner site (travelyosemite.com) for booking windows.
Campgrounds inside the park include Campground Valley Loop sites at Upper and Lower Pines, North Pines, Camp 4 (historically a climbers' campground, now reservable), and several high-country options along Tioga Road. Most reservations go through recreation.gov and sell out within minutes of the booking window opening.
Gateway Towns
If in-park lodging is unavailable, the following towns offer a range of hotels, motels, and vacation rentals and are within reasonable driving distance:
- El Portal — closest to Arch Rock entrance, about 1 mile from the park boundary
- Mariposa — roughly 30 miles from the Valley on Highway 140
- Groveland — near the Big Oak Flat entrance on Highway 120
- Lee Vining — eastern gateway, useful for Tioga Road access in summer
Verify current lodging options and prices locally or through standard booking platforms, as availability and businesses change seasonally.
Things to See & Do
Yosemite Valley Landmarks
- El Capitan: The 3,000-foot granite monolith is visible from Valley View and El Capitan Meadow. Watching climbers through binoculars from the meadow is a popular activity.
- Half Dome: Visible throughout the Valley; the cable-assisted summit hike (permit required) is one of the most demanding and rewarding day hikes in the U.S. at roughly 14 to 16 miles round-trip.
- Yosemite Falls: One of the tallest waterfalls in North America. The lower fall is a short walk from the shuttle stop; the upper fall trail is a strenuous half-day hike. Flow peaks in May and early June.
- Bridalveil Fall: Near the Valley entrance, accessible via a short paved path.
- Valley Floor Loop: A roughly 11-mile flat loop covering major meadows and viewpoints; doable by foot or bike.
Beyond the Valley
- Glacier Point: A paved road leads to a viewpoint 3,200 feet above the Valley floor with direct sight lines to Half Dome and the high country. Road access is seasonal; verify before going.
- Mariposa Grove: The park's largest sequoia grove, home to trees over 2,000 years old including the Grizzly Giant. A free shuttle runs from the south entrance parking area.
- Tuolumne Meadows: A broad subalpine meadow at 8,600 feet elevation along Tioga Road, offering hiking, climbing, and ranger programs. Accessible roughly mid-June through October.
- Hetch Hetchy: The park's north reservoir area, far less visited, with trails through canyon scenery. Year-round access.
Ranger Programs
Free ranger-led walks, talks, and evening programs run throughout the year. Schedules are posted at visitor centers and on the NPS website.
Food & Drink
Inside the Park
Dining options within Yosemite range from the formal dining room at The Ahwahnee (smart-casual dress encouraged; reservations recommended) to casual pizza, burgers, and cafeteria-style food at Curry Village and Yosemite Village. A grocery store and deli operate in Yosemite Village. Hours and offerings change seasonally — verify on travelyosemite.com before planning meals.
Practical Notes
- Food storage rules are strictly enforced. All food, scented items, and coolers must be stored in bear boxes (available at campsites and trailheads) or a hard-sided vehicle. Do not leave food in tents.
- Bringing your own food from gateway towns is a popular and economical strategy, particularly for multi-day campers.
- Dining options thin out significantly outside the Valley; Tuolumne Meadows has limited services and Hetch Hetchy has none.
Practical Information
Cell Service and Connectivity
Cell coverage is unreliable throughout most of the park. Wi-Fi is available at some lodges for guests. Download maps, permits, and any needed information before entering.
Altitude
Tuolumne Meadows and Tioga Road elevations exceed 8,000 to 10,000 feet. Visitors coming from sea level may feel mild altitude effects including headaches or shortness of breath. Hydrate well, avoid strenuous exertion on your first day at elevation, and descend if symptoms worsen.
Emergency Services
Yosemite has a medical clinic in Yosemite Village with urgent care services; verify current hours locally. For emergencies, dial 911. Park rangers also serve as first responders. The NPS park emergency dispatch can be reached through the park's main visitor line — verify the current number at nps.gov/yose.
Accessibility
Many Valley floor trails, the Valley Visitor Center, and several viewpoints are wheelchair accessible. The park's accessibility guide is available at visitor centers and on the NPS website.
Best Apps and Resources
- NPS Yosemite app: Official park app with offline maps
- recreation.gov: Campsite and permit reservations
- yarts.com: Bus schedules
- nps.gov/yose: Road and weather conditions, current alerts
Safety
Wildlife
Black bears are active throughout the park. Never approach, feed, or store food improperly near bears. Mountain lions are present but rarely encountered. Rattlesnakes inhabit lower-elevation areas, particularly in summer; watch where you step off-trail.
Water and Swimming
Many visitors swim in the Merced River, but swift currents above waterfalls have caused fatalities. Heed all posted warning signs and never swim near waterfall edges. Treat or filter all backcountry water sources; giardia is present.
Trail Safety
- Stay on marked trails near cliff edges and waterfall viewpoints — railing-free areas at the top of falls are genuinely hazardous.
- Tell someone your planned route and expected return time before backcountry trips.
- Lightning is a real risk on exposed high-country ridges in summer afternoons; plan to be off summits by midday.
- Flash floods can occur in canyon areas after heavy rain.
Sun and Weather
Weather changes rapidly at elevation. Afternoon thunderstorms are common in summer. Always carry rain gear and extra layers, even on clear mornings.
