Climbing Half Dome in Yosemite National Park is a 16-20 mile round trip with a 5,000-foot elevation gain, culminating in a 400-foot ascent using steel cables. You’ll need a permit, obtained through a lottery system, and should train with endurance hikes and grip strength exercises. Crucial gear includes sturdy boots, gloves for the cables, and 4 liters of water. The final cable section requires focus and three points of contact for stability. Weather can change quickly, so check forecasts and avoid wet conditions. The summit offers panoramic views of Yosemite Valley. Discover how to prepare and succeed in that iconic climb.
In this article
- Summary
- The Ultimate Guide to Yosemite Climbing Half Dome
- A Journey Through Time: Half Dome’s Enduring Legacy
- The Permit Puzzle: Securing Your Spot on Half Dome
- Preparing for the Climb: Training and Essential Gear
- Conquering the Cables: A Step-by-Step Ascent Guide
- Safety First: Navigating the Challenges of Half Dome
- Beyond the Summit: Reflections and Next Steps
- Popular Questions
Summary
- Half Dome’s final 400-foot cable climb requires gloves, focus, and three points of contact for safety and stability.
- A permit is mandatory for the ascent, obtained through a lottery system with higher success rates on weekdays.
- Physical training, including endurance hikes and grip strength exercises, is essential for tackling the 16-20 mile trail.
- Check weather conditions and avoid climbing during rain or thunderstorms to prevent slippery granite and cable hazards.
- The summit offers breathtaking views of Yosemite Valley, El Capitan, and the Sierra Nevada, rewarding the challenging climb.
The Ultimate Guide to Yosemite Climbing Half Dome

Half Dome, a granite monolith towering over Yosemite Valley, calls to adventurers with its iconic silhouette and legendary climb. To conquer that Yosemite icon, you’ll need a permit, which is vital for the ascent. Permits are limited and awarded through a lottery system, so plan ahead.
The trail to the summit spans 16-20 miles round trip, with a 5,000-foot elevation gain. It’s a strenuous hike, so physical preparation is key. Start training months in advance, focusing on endurance and leg strength.
The final 400-foot climb up the granite face is the most challenging part. You’ll rely on steel cables bolted into the rock for support. Gloves are recommended for a better grip on the cables. Ensure your safety harness is secure and properly fitted to prevent accidents during the climb.
Safety is paramount; check weather conditions and avoid the climb if rain or lightning is forecasted. Bring plenty of water, snacks, and a first-aid kit.
The summit rewards you with panoramic views of Yosemite Valley, Vernal Falls, and Nevada Falls. Respect the environment by staying on the trail and packing out all trash. With proper planning and preparation, your Half Dome climb will be a memorable achievement.
A Journey Through Time: Half Dome’s Enduring Legacy

You’ll discover how early ascents, like George Anderson’s 1875 climb, showcased the spirit of exploration that defined Half Dome’s history. Over time, safety measures evolved, such as the installation of the Cable Route in 1920, making the climb more accessible and preserving its challenge. Today, Half Dome stands as a bucket-list destination, blending its storied past with modern-day adventure. The evolution of big wall climbing techniques in the 1920s, pioneered by climbers like Emil Solleder, significantly influenced the way Half Dome and other iconic summits are approached today.
Early Ascents and the Spirit of Exploration
Though once deemed “perfectly inaccessible,” Half Dome’s summit was first conquered in 1875 by George Anderson, whose determination shattered the myth of its impossibility. Anderson, a trailblazing climber, achieved this historic Yosemite ascent by drilling holes into the granite and creating a rudimentary climbing route. His success marked a turning point for rock climbers, proving that even the most intimidating peaks could be scaled with ingenuity and perseverance. This early climb laid the foundation for future ascents and inspired a spirit of exploration in Yosemite Valley. Anderson’s approach mirrored the techniques later refined by climbers like Royal Robbins, who pioneered minimal aid strategies in big wall climbing.
Anderson’s achievement opened the door for other climbers to attempt Half Dome. His groundbreaking approach demonstrated that with the right techniques, even the most challenging climbs could be mastered. This spirit of exploration attracted prestigious rock climbers to Yosemite, keen to test their skills against its iconic granite walls. Over time, these historic Yosemite ascents transformed Half Dome into a symbol of human determination and adventure.
The legacy of these early climbs continues to inspire climbers today. Anderson’s trailblazing efforts not only made Half Dome accessible but also set the stage for the development of modern climbing routes. His story reminds you that with determination, even the most formidable obstacles can be overcome.
Evolution of Safety Measures and Practices
Over the decades, safety measures on Half Dome have transformed significantly to address the challenges of its iconic climb. Early ascents relied on minimal rock climbing equipment, but today’s climbers benefit from advanced gear and protocols. The installation of steel cables in 1919 marked a turning point, making the steep sections more accessible and emphasizing the need for better safety practices.
Modern climbers use climbing harnesses and carabiners to clip onto the cables, reducing the risk of falls on steep slopes. These tools, combined with sturdy climbing ropes, provide vital support during the ascent and descent. Choosing the right climbing harness is crucial for ensuring both safety and comfort during the climb.
Rock climbing techniques have likewise evolved. Although some still attempt a free climb, most hikers rely on the cables and proper rock climbing equipment to navigate the steep steps safely. Gloves with strong grip are now standard, protecting hands from the rough granite and ensuring a secure hold.
Furthermore, hikers are encouraged to wear supportive footwear for steep hiking, as proper traction is critical on slick, angled surfaces. Preparation is key. You’ll need to carry enough water, snacks, and layers to handle changing conditions.
Half Dome in the Modern Era: A Bucket-List Destination
As one of the most iconic landmarks in Yosemite National Park, Half Dome has become a bucket-list destination for adventurers worldwide. Its towering granite face and challenging climb draw thousands of hikers each year. The 14–16-mile round-trip hike, with a 4,800-foot elevation gain, tests your endurance and determination. The final 400-foot ascent up the steel cables is both thrilling and demanding, requiring focus and physical strength. Climbers must adapt to changing weather conditions for safety, especially during the exposed cable section.
Reaching the summit rewards you with a 360-degree view of Yosemite Valley, Vernal Falls, and the High Sierra. That breathtaking panorama makes the effort worthwhile. To guarantee safety and preserve the trail, a permit is required for the climb. Planning ahead is crucial, as permits are limited and highly sought after.
Here’s a breakdown of what to expect on the Half Dome hike:
The Half Dome experience is more than just a hike; it’s a test of resilience and a chance to connect with nature’s grandeur. Prepare thoroughly, and you’ll leave with memories to last a lifetime.
The Permit Puzzle: Securing Your Spot on Half Dome

To climb Half Dome, you’ll need a permit, which is secured through a lottery system. The preseason lottery, open in March, gives you the best chance, but you can additionally try the daily lottery two days before your hike.
Backpacker permits are another option if you’re planning an overnight trip in the area.
Understanding the Permit System: Lottery and Pre-Season Lottery
Securing a permit for Half Dome hinges on maneuvering the lottery system, which balances access with preservation. The permit system guarantees the Half Dome trail remains safe and sustainable by limiting daily hikers. You’ll need a Half Dome permit to tackle the iconic Half Dome hike, whether you’re planning months ahead or making a last-minute decision.
The pre-season lottery is your best bet for securing a permit. It runs from March 1st to March 31st, with results announced in mid-April. You can apply for up to six permits for your group, selecting preferred hiking dates. Weekdays and dates outside peak season increase your chances. This option is ideal for those who prefer planning ahead.
If you miss the pre-season lottery or decide on a spontaneous trip, the daily lottery is your alternative. Applications open at midnight two days before your desired hiking date and close at 1 pm Pacific time. You’ll receive results late that evening. Nevertheless, success rates are lower, especially on weekends.
Both lotteries are managed through Recreation.gov, where you’ll create an account and submit applications. Grasping these options guarantees you’re prepared to secure your spot on the Half Dome trail.
Successfully maneuvering the pre-season lottery for Half Dome permits often requires strategic planning and flexibility. Start by applying during the week, as weekends are in high demand. Tuesdays, Wednesdays, or Thursdays historically have higher success rates because of lower competition. If your schedule allows, target the off-season—May/June or September/October—when fewer applicants vie for dome permits. These periods additionally offer cooler weather and fewer crowds, enhancing your Yosemite visit.
When submitting your application, choose a flexible date range rather than a single day. That increases your odds of securing a dome permit, as you’ll be considered for multiple dates. If you’re hiking with a group, maximize your chances by having each member apply for the full six-person limit. If multiple applications succeed, you can cancel extras for a refund, minus the application fee.
Designate a trip leader and alternate who are available on all potential dates. The leader or alternate must be present at the Yosemite Valley trailhead or Yosemite Valley Lodge checkpoint. Use Yosemite maps to plan your route and consult a Yosemite Valley ranger for updates.
Persistence is key—if you don’t win, explore other options like the daily lottery or backpacker permits.
Alternative Permit Options: Daily Lottery and Backpacker Permits
Navigating the permit process for Half Dome doesn’t conclude with the pre-season lottery. If you miss that opportunity or require adaptability, you’ve got two reliable alternatives: the daily lottery and backpacker permits.
The daily lottery provides a secondary chance to obtain a permit. You submit your application two days prior to your planned hiking date via Recreation.gov, between midnight and 1 pm Pacific time. Outcomes arrive late that evening. Although success rates are reduced, particularly on weekends, weekdays in September and October enhance your likelihood. This choice accommodates those unable to plan months in advance but necessitates swift preparation if you succeed.
Backpacker permits represent another pathway. These are integrated into the wilderness permit system, and designated for multi-day excursions. You’ll request a Half Dome permit when applying for your wilderness permit. Popular trails include Happy Isles to Little Yosemite Valley or commencing from Glacier Point or Tuolumne Meadows. These allow you to extend the hike over multiple days and relish the backcountry.
Backpacker permits boast higher success rates but require gear, expertise, and meticulous planning. Select the alternative that aligns with your hiking preferences and timetable.
Preparing for the Climb: Training and Essential Gear

Start by building a solid foundation with a 6-8 week training plan that focuses on cardio, leg strength, and core stability to handle the hike’s steep elevation gain.
Equip yourself with crucial gear like slip-resistant hiking boots, a hydration system, and moisture-wicking clothing to stay safe and comfortable on the trail.
Pack smart by including trekking poles, a headlamp, and a lightweight first-aid kit to enhance your backpack for the long and demanding expedition.
Building a Solid Foundation: Training Plans for Half Dome
Climbing Half Dome demands both physical stamina and mental resilience, making a structured training plan essential for success. Whether you’re a beginner or an experienced hiker, preparing for Yosemite National Park‘s iconic summit requires targeted effort.
Start by building a solid foundation. If you’re new to hiking, begin with shorter 3-5 mile hikes twice a week, gradually increasing distance and elevation. Incorporate strength training twice weekly, focusing on the legs, core, and upper body. Enhance your grip strength with exercises like dead hangs and towel pull-ups to improve your ability to handle the Dome Cables.
For those who frequent Yosemite or have a good fitness level, start with 5-7 mile hikes and add hills or stair climbs to simulate the steep rock steps of the Dome Trail. As you progress, increase your hike distances to 8-10 miles with a weighted pack to mimic the arduous ascent.
Advanced hikers should aim for 10-12 mile hikes with significant elevation gain, incorporating interval training and back-to-back hiking days. Regardless of your level, practice the Dome Cables section by climbing steep inclines using ropes or handrails.
That prepares you for the final 400-foot ascent from the Dome Trailhead. Consistent training guarantees you’re ready to conquer Half Dome safely and confidently.
Equipping Yourself for Success: The Essential Gear Checklist
Before tackling Half Dome’s demanding ascent, you’ll need to verify you’re equipped with the right gear to handle the challenges ahead. Start with sturdy hiking boots that provide ankle support and grip, vital for traversing rocky terrain and cables. Pair them with a comfortable backpack, ideally 20-30 liters, to carry your necessities without strain.
Dress in moisture-wicking clothing layered for changing weather, including a waterproof jacket and gloves for the cables. Bring at least 4 liters of water per person, using a hydration bladder or bottles, and pack high-energy food like trail mix and sandwiches to fuel your hike.
A headlamp guarantees visibility in low light, whereas a first-aid kit prepares you for minor injuries. Don’t forget sunscreen to protect against intense sun exposure.
Trekking poles, though optional, offer stability on steep descents. Gloves with a good grip are pivotal for the cable section, and a headlamp guarantees you’re prepared for early starts or late finishes. With these items, you’ll be ready to tackle Half Dome’s challenges safely and effectively. Ensure your hiking boots have deep lug outsoles for enhanced traction on slippery surfaces.
Packing Smart: Optimizing Your Backpack for Half Dome
Effectively organizing your backpack for the Half Dome hike can greatly influence your comfort and stamina during the expedition. Start by minimizing weight to reduce fatigue. Pack only crucial gear, like a first aid kit, headlamp, and lightweight layers. Use multi-purpose items, such as a quick-drying towel that doubles as a sweatband.
Distribute weight evenly in your backpack by placing heavier items closer to your back. That maintains balance and reduces strain. Use compression sacks or packing cubes to organize gear and save space.
Hydration is critical, so carry a hydration bladder for easy access to water. Add extra water bottles to guarantee you stay hydrated throughout the hike. Pack energy-boosting snacks like trail mix, protein bars, and dried fruit. These provide sustained energy without adding bulk.
Keep in mind, that you can’t leave gear at the base of the cables, except for trekking poles. Plan appropriately to carry everything you need. By optimizing your backpack, you’ll enhance comfort and focus on the challenge of conquering Half Dome.
Conquering the Cables: A Step-by-Step Ascent Guide

Approaching the Sub Dome marks the final push before the cables, where you’ll need to conserve energy for the steep ascent ahead.
Ascending the cables requires proper technique—wear gloves, stay on the inside, and maintain a steady pace to guarantee safety and avoid delays. Effective communication between climbers and belayers is crucial to ensure a smooth and safe ascent.
Reaching the summit rewards you with panoramic views of Yosemite Valley, a reflection of your effort and preparation.
Approaching the Sub Dome: The Final Push
As you leave Little Yosemite Valley, the trail begins its relentless climb toward the sub dome, testing your endurance with steep switchbacks through a shaded forest of Sequoia trees. That section marks the final push before the cable ascent, demanding both physical and mental resilience.
The trail’s incline increases significantly, and the altitude begins to take its toll, making each step more challenging. You’ll navigate a series of steep granite steps, requiring careful footing and steady pacing.
The sub-dome itself is a steep, exposed section of the hike, often described as a grueling stair stepper. As you ascend, the terrain shifts from steps to smooth, rounded granite, forcing you to focus on balance and grip. A ranger typically checks permits here, marking the official start of the permitted section.
Despite the difficulty, the views become increasingly rewarding. You’ll catch glimpses of Half Dome’s imposing face and panoramic vistas of Yosemite Valley and Clouds Rest. That part of the hike prepares you for the final challenge: the cables. Stay hydrated, pace yourself, and keep your eyes on the summit.
Ascending the Cables: Techniques and Safety Precautions
How do you tackle the final 400-foot ascent of Half Dome? The climb up the cables is steep and requires focus, technique, and safety awareness. Start by putting on gloves with a strong grip, like nitrile work gloves, to protect your hands and improve your hold on the cables. At the base, secure all loose items in your backpack to avoid distractions or dropped gear.
Grip one cable in each hand and maintain three points of contact—two hands and one foot or two feet and one hand. Use the wooden planks bolted to the rock face as stable platforms for your feet. The cables follow a 45- to 55-degree incline, so engage your arms and core to pull yourself up.
Move at a steady pace, avoiding rushing, and stay aware of other hikers. For added safety, consider using a climbing belt and climbing lanyard. A Via Ferrata system, which clips you to the cables, can prevent falls.
Always check weather conditions; wet rock makes the climb extremely dangerous. By following these steps, you’ll safely reach the summit of Half Dome.
Reaching the Summit: Savoring the Victory
After conquering the steep cables and steadying your breath, you step onto the summit of Half Dome. This granite monolith, rising over Yosemite Valley, offers a moment of triumph and reflection. The summit’s panoramic views are your reward, stretching across Yosemite National Park and the High Sierra.
You’ll see iconic landmarks like El Capitan, Sentinel Dome, and Clouds Rest, each standing tall against the vast wilderness. To the east, the rugged peaks of the Sierra Nevada dominate the horizon, whereas Yosemite Valley lies below, its granite cliffs and waterfalls framed by dense forests.
The 360-degree vista is unmatched, highlighting the park’s natural grandeur. Take time to absorb the scale of the terrain, from the distant alpine lakes to the sheer cliffs nearby. This experience connects you to the enduring beauty of Yosemite.
Keep in mind to stay safe on the exposed summit, as the terrain can be uneven and the weather unpredictable. Capture the moment, but additionally take a few minutes to simply observe and appreciate the achievement of reaching this iconic peak.

Before starting your climb, check the weather forecast to avoid dangerous conditions like lightning or slippery cables.
Bring enough water and snacks to stay hydrated and energized, as there are no water sources on the trail.
Practice Leave No Trace principles by packing out all trash to preserve Yosemite’s natural beauty for future visitors.
Weather Wise: Monitoring Conditions and Planning Accordingly
Successfully traversing Half Dome’s ascent requires attentiveness in monitoring weather conditions, as the mountain’s exposed summit poses unique risks. Check weather forecasts from reliable sources like the National Weather Service in the days leading up to your hike and again on the morning of your climb. Afternoon thunderstorms are common in Yosemite, and the summit is particularly dangerous during lightning storms because of its elevation above the tree line. If you see storm clouds approaching, turn around immediately—safety should always come before reaching the summit.
Rain makes the granite surface and cables extremely slick, increasing the risk of falls. Avoid ascending the cables if rain is in the forecast or if the rock is wet. The summit is often colder and windier than the valley floor, so pack layers, including a waterproof and windproof jacket. Be prepared to adapt your plans based on the weather conditions. If the forecast predicts inclement weather, postpone your hike or choose an alternative trail at a lower elevation.
Hydration and Nutrition: Fueling Your Body for the Climb
Proper hydration and nutrition are non-negotiable for tackling Half Dome’s grueling 16-20 mile hike. Start by carrying at least one gallon (four liters) of water per person. Dehydration can lead to fatigue, dizziness, and more severe issues, so bring extra on hot days. The last reliable water source is the Merced River in Little Yosemite Valley. Use a water filter or purification tablets to refill safely.
For nutrition, pack snacks high in protein and calories to sustain your energy. Protein bars, trail mix, dried fruit, and nuts are excellent choices. You’ll burn thousands of calories, so eat frequently to avoid “bonking,” a sudden loss of energy. Include electrolyte supplements like Nuun tablets to replace salts lost through sweat.
Plan meals and snacks strategically. Eat a hearty breakfast before starting and consume small portions every hour during the hike. Sandwiches, beef jerky, and energy gels are practical options.
Staying fueled helps you maintain stamina and focus, especially during the steep cable section. Prioritize hydration and nutrition to guarantee a safe and successful climb.
Leave No Trace: Protecting Yosemite’s Pristine Environment
While fueling your body is key to conquering Half Dome, it’s just as vital to minimize your impact on Yosemite’s environment. Practicing Leave No Trace principles guarantees the preservation of Yosemite National Park for future generations. Start by packing out all trash, including food scraps and toilet paper. Use bear-proof trash cans at trailheads to dispose of waste properly. Staying on designated trails prevents damage to vegetation and protects the ecosystem. Straying off-trail can erode soil and disturb wildlife habitats. Respect wildlife by observing from a distance and never feeding animals. Proper food storage is necessary—use bear-resistant containers to avoid attracting bears and other wildlife. Here’s a quick guide to Leave No Trace practices:
Beyond the Summit: Reflections and Next Steps
Reaching the summit of Half Dome isn’t just about conquering the climb—it’s a moment to reflect on the expedition and what comes next. Standing in Yosemite National Park‘s summit area, you’ll see the steep granite domes and valleys below, a reward for your day hike. This trekking experience, requiring a permit and careful planning, tests your endurance and respect for nature.
Park rangers stress safety and environmental responsibility, ensuring every hiker leaves no trace. The gradual climb and final cable ascent challenge your limits, but the views make it unforgettable.
After descending, take time to process the adventure. Review your preparation and training—what worked and what didn’t. Use this insight to plan future hikes or even return to Half Dome.
Explore Yosemite’s other trails, like the Mist Trail or John Muir Trail, to build on your skills. Join local hiking groups or online forums to share experiences and learn from others.
Finally, consider how this experience has shaped your perspective. Half Dome isn’t just a physical challenge; it’s a reminder of nature’s might and your ability to persevere. Use this momentum to set new goals, whether in hiking or life.
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