Half Dome in Yosemite: Trail Guide, Permits, and Hiking Tips

Half Dome in Yosemite rises 8,846 ft. above sea level, its sheer granite face visible from nearly every vantage point in Yosemite Valley. Each year, hikers from around the world line up for permits to attempt the 14-16 mile round-trip climb, a route that gains approximately 4,800 ft. in elevation and takes most people 10-12 hours to complete. The reward at the summit is a 360-degree panorama stretching from Clouds Rest to the Cathedral Range, with the Merced River winding through the valley floor far below.

This guide breaks down everything needed to plan a successful Half Dome hike, from choosing between the Mist Trail and John Muir Trail approaches to understanding the permit lottery system, preparing for the famous cable ascent, and finding the right base camp near Yosemite's south entrance.

The majestic Half Dome peak standing tall against a clear blue sky, with the morning sun rays falling over the steep slopes, viewed from the foothills.

Half Dome at a Glance: Formation, Elevation, and Iconic Status

Half Dome is a quartz monzonite batholith that formed approximately 93 million years ago during the Cretaceous period. Magma cooled slowly thousands of feet below the Earth's surface, crystallising into the dense granite that glaciers later carved and exposed. Three of its sides are smooth and rounded, while the northwest face drops nearly vertically, creating the distinctive silhouette that has served as Yosemite's unofficial symbol since the park's earliest days.

George Anderson completed the first recorded ascent in October 1875, drilling iron eye bolts into the granite to reach the summit. The steel cables that hikers use today were first installed in 1919 and are raised onto metal poles each spring, typically the Friday before Memorial Day, remaining in place until mid-October.

What to Expect on the Half Dome Hike

The Half Dome hike is rated as a strenuous, full-day endeavor that demands solid fitness and careful planning. Starting from Happy Isles (shuttle stop 16) in Yosemite Valley, the route passes 2 major waterfalls before climbing through Little Yosemite Valley and ascending the Sub Dome switchbacks to reach the cable section.

A group of mountain climbers climbing the steep slopes of the Half Dome.

A panoramic shot of the Half Dome in Yosemite, illuminated by orange hues of the setting sun rays

Trail Stats at a Glance

  • Round-trip Distance: 14-16 miles, depending on route choice
  • Total Elevation Gain: Approximately 4,800 ft.
  • Summit Elevation: 8,846 ft. above sea level
  • Estimated Hiking Time: 10-12 hours for most hikers
  • Difficulty: Strenuous, requiring above-average fitness and comfort with heights
  • Trailhead: Happy Isles, Yosemite Valley (parking near Curry Village)

Half Dome Trail Routes: Mist Trail vs John Muir Trail

2 approaches lead from the valley floor to the base of Half Dome, and most hikers combine them into a loop. The Mist Trail is the shorter and steeper option at approximately 2.5 miles one way to Nevada Fall, climbing over 600 granite steps that run directly alongside Vernal Fall. Expect heavy spray from late spring through early summer, which makes the steps slippery but offers an up-close encounter with the 317 ft. waterfall.

The John Muir Trail stretches approximately 4 miles one way to the same point, trading intensity for a more gradual ascent with wider switchbacks. This route offers clear views of Liberty Cap and a different perspective of Nevada Falls' 594 ft. drop.

A practical strategy is to take the Mist Trail up while legs are fresh and return via the John Muir Trail, easing the descent on tired knees.

Back shot of a mountain climber wearing an orange jacket with a bag pack, looking at the panoramic Half Dome structure .

Breathtaking panoramic view of the Vernal Falls amidst granite cliffs in Yosemite.

Key Milestones Along the Half Dome Trail

  • Vernal Falls Footbridge (0.8 miles): Last drinking fountain and treated water source on the trail. Fill all bottles here.
  • Top of Vernal Falls (1.2 miles): 317 ft. waterfall with flush restrooms nearby. The granite slabs around Emerald Pool are dangerously slippery, so stay behind railings.
  • Top of Nevada Falls (2.7 miles): 594 ft. cascade marking the halfway point in distance. Composting restrooms are available.
  • Little Yosemite Valley (3.5 miles): A flat, forested stretch where backpackers camp. A good spot to refuel before the steep climb ahead.
  • Sub Dome (~7 miles): A series of steep granite switchbacks. Permit checks happen here, and hikers without valid permits must turn back.
  • The Cables (7.5 miles): The final 400 ft. ascent on steel cables to the 8,846 ft summit

The Cables: Conquering the Final Ascent

The cable section is what separates Half Dome from every other hike in Yosemite. 2 steel cables, mounted on metal poles and spaced roughly 5 ft. apart, run up the final 400 ft. of smooth granite at a grade that approaches 60 degrees in places. Wooden planks placed every 10-15 ft. provide footing between pulls. On busy days, expect to share the cables with dozens of other hikers moving in both directions, which means waiting on the exposed rock face while others pass.

The physical demand is real. Pulling your full body weight uphill on cables for 20-30 minutes requires upper body strength, grip endurance, and steady nerves. Rain, even light mist, makes the granite dangerously slick, and fatal falls have occurred on wet rock. If dark clouds appear or the surface feels damp, turn back. No summit view is worth the risk.

A group of mountain climbers performing a descent on the rocky mountain terrain, wearing a bag pack on their backs.

A close-up shot of the collection of several mountain climbing gear featuring climbing cables, harness, helmet, and shoes.

Essential Gear for the Cables Section

  • Grippy Gloves: Rubber-palmed work gloves or leather gloves prevent blisters and improve cable grip. Pile of discarded gloves at the base is unreliable, so bring a pair.
  • Sturdy Footwear: Hiking boots with aggressive tread and ankle support. Trail runners are lighter but offer less grip on smooth granite.
  • Minimum 1 Gallon of Water: The only treated water source is at the Vernal Falls footbridge, less than a mile in. Carry enough for the full day.
  • Headlamp: Many hikers start before dawn to avoid afternoon thunderstorms. A reliable headlamp is essential for the first few miles in darkness.
  • Sun Protection: Sunscreen, hat, and sunglasses. The Sub Dome and cables section is fully exposed with no shade.
  • High-calorie Snacks: Energy bars, nuts, and dried fruit to sustain 10-12 hours of continuous effort.

Permits and the Lottery System

Since 2010, all day hikers heading beyond the Sub Dome base are required to carry a permit. The National Park Service caps access at about 300 hikers per day, split between 225 day-hiker permits and 75 backpacker allocations. 2 lottery windows give hikers a chance to secure a spot.

  • Preseason Lottery: Applications open from 1st March to 31st March on www.recreation.gov. Results are emailed by mid-April. Each application covers up to 6 people for specific dates or date ranges.
  • Daily Lottery: Opens 2 days before the hike date, from midnight to 4:00 PM Pacific time. Results arrive the same evening. Availability depends on cancellations and estimated under-use.
  • Application Fee: $10 per application (non-refundable)
  • Permit Fee: $10 per person (refundable if cancelled by 11:59 PM the night before)
  • Photo ID Required: Carry a printed or digital copy of the permit confirmation along with a valid government-issued photo ID on the trail.

A beautiful view of the Half Dome hiking trail with a grey facade.

A group of mountain climbers climbing a huge cliff against a clear blue sky in the background.

Half Dome Hike Tour Options

A Half Dome hike tour pairs hikers with experienced guides who handle permits, gear advice, pacing, and safety decisions on the cables. Guided options are worth considering for first-time visitors unfamiliar with the trail, solo hikers who prefer company on a long day, or anyone uncertain about navigating the permit process independently.

What Guided Tours Typically Include

  • Permit Coordination: Most outfitters secure permits through the lottery and include them in the tour price, removing the uncertainty of the application process
  • Professional Pacing: Guides set a sustainable rhythm, manage rest stops, and monitor group energy levels to prevent bonking before the cables
  • Safety Briefings: Detailed instruction on cable technique, weather assessment, and turnaround protocols if conditions deteriorate
  • Trail Knowledge: Geological and ecological commentary at key stops, plus insider tips on the best photo angles and quieter rest spots
     

The Half Dome peak protruding tall in the vast clear blue sky surrounded by the granite hills.

A distant view of the Nevada Falls, with foaming white waters flowing downstream at a high speed, surrounded by pine trees.

Best Time to Hike Half Dome

The cables are typically raised on the Friday before Memorial Day and taken down the day after the second Monday in October, giving hikers a window of roughly late May through mid-October. Within that range, June and September offer the strongest balance of weather and trail conditions. June brings long daylight hours and peak waterfall flow from snowmelt, though lingering snow patches above Nevada Fall can slow progress early in the month.

September sees fewer crowds, stable weather, and dry granite on the cables, making it the preferred month for experienced hikers. July and August are warm but carry the highest risk of afternoon thunderstorms, which are particularly dangerous on the exposed Sub Dome and cables. Regardless of the month, start before dawn.

Most experienced hikers leave the trailhead by 5:00 AM or 6:00 AM to summit before early afternoon, when storm probability peaks.

What to See Along the Way

The trail to Half Dome delivers more than a summit. Vernal Falls appears within the first mile, its 317 ft. curtain of water close enough to soak hikers on the Mist Trail during peak flow. Higher up, Nevada Falls drops 594 ft. into a granite amphitheater, with viewpoints along both the Mist and John Muir trails. Between the 2 waterfalls, the turquoise Emerald Pool catches light in ways that stop hikers mid-stride.

Wildlife sightings add another layer to the experience. Black bears frequent the Little Yosemite Valley corridor, Steller's jays patrol the trail for unguarded snacks, and mule deer graze in the meadows below Sub Dome. From the summit, the panorama stretches across Tenaya Canyon to Clouds Rest, with the Cathedral Range and the Clark Range visible on clear days.

A black bear in the wild stands among green shrubs.

Curved mountain road passing through lush green forests with sun rays gleaming from above.

Nearby Towns Worth Exploring

When the trail days are done, 2 gateway towns near the Narrow Gauge Inn reward a slower afternoon. Oakhurst, just down Highway 41 to the south, is the larger of the 2 and makes an easy stop for supplies, a meal, or a browse through its local bookstore. It also works well as a launch point for guided adventures, including backcountry Jeep tours and Discover Yosemite Tours, which run guided bus excursions into the park with lunch included, a low-effort way to take in the highlights on a rest day.

To the northwest, the Gold Rush town of Mariposa offers a different kind of detour. First settled in 1849, it sits at the crossroads of Highways 140 and 49, with original 1850s storefronts still in use along its historic Main Street. Best of all, after months of tracking permit windows and lottery dates for Half Dome, Mariposa asks for none of that. There are no reservations to secure and no timed entries to plan around, so you can simply show up, wander the museums and shops, and let the afternoon unfold at its own pace.

Stay at Serenite Collection: Narrow Gauge Inn

Narrow Gauge Inn sits on Highway 41 in Fish Camp, California, just minutes from Yosemite's south entrance. The trailhead at Happy Isles is a short drive through the park, making this the kind of base that lets hikers leave before dawn without losing sleep to a long commute. After 10-12 hours on the trail, returning to a comfortable room rather than a campsite makes a measurable difference in recovery.

Our 7 room categories include king and queen rooms with mountain or forest views, Family Suites accommodating up to 6 guests, and the Mission Suite with a king bed, twin trundle, and 2 bathrooms. The on-site Aroma Tavern and Buffalo Bar serve hearty meals for pre-hike fueling and post-hike recovery, saving the drive into Oakhurst or Mariposa for dinner.

A seasonal pool, free Wi-Fi, and forested surroundings round out the stay between trail days. For hikers planning a multi-day Yosemite itinerary, our location on Highway 41 also provides quick access to Glacier Point, Mariposa Grove, and the Wawona area.

A wide-angle shot of the King Room - Mountain View at the Narrow Gauge Inn with a double bed and sliding doors opening to a balcony.

Half Dome demands preparation, respect, and a willingness to earn every foot of elevation. The permit system, the physical intensity, and the exposed cables all filter out casual attempts, but that selectivity is part of what makes reaching the summit so rewarding. Start the permit application in March, train with elevation-gaining hikes in the months before the trip, and pack the right gear for a full day on granite.

With Narrow Gauge Inn as a base, the logistics of a Half Dome attempt become simpler. A warm bed, a solid meal, and proximity to the south entrance mean more sleep and less driving on the morning that matters most.

FAQs

1. How long is the Half Dome hike in Yosemite?
The Half Dome hike covers 14-16 miles round trip, depending on the route, with approximately 4,800 ft. of elevation gain. Most hikers complete it in a duration of 10-12 hours.

2. Do I need a permit to hike Half Dome?
Yes, a permit is required for all day hikers heading beyond the Sub Dome when the cables are up. Permits are available through a preseason lottery in March and a daily lottery 2 days before the hike date on www.recreation.gov.

3. When are the Half Dome cables up?
The cables are typically raised on the Friday before Memorial Day and removed the day after the second Monday in October, roughly late May through mid-October.

4. What is the best month for the Half Dome hike?
June and September offer the best conditions. June has long daylight and peak waterfall flow, while September brings dry granite, fewer crowds, and stable weather.

5. What is the difference between the Mist Trail and the John Muir Trail to Half Dome?
The Mist Trail is shorter (~2.5 miles to Nevada Falls) but steeper, with over 600 granite steps. The John Muir Trail is longer (~4 miles) with gentler switchbacks. Many hikers go up via the Mist Trail and return on the Half Dome Trail via John Muir.

6. Are guided Half Dome hike tours available?
Yes, several outfitters offer guided Half Dome hike tour options that include permit coordination, pacing, safety briefings, and trail commentary. They are a practical choice for first-time hikers or solo visitors.

7. What should I bring on the Half Dome hike?
Essentials include grippy gloves, sturdy hiking boots, at least 1 gallon of water, a headlamp, sun protection, high-calorie snacks, and a printed or digital copy of the permit with photo ID.

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