If you have plans to hike to Half Dome, you must have a Half Dome permit. A maximum of 300 permits are awarded per day in a lottery system.
Why do you need a permit?
Since 2010, the National Park Service has required hikers to have a permit to climb Half Dome.
Before 2010, overcrowding on the cables created a dangerous situation. On peak days before 2010, there would be as many as 1,200 daily visitors to Half Dome. In 2009, 2 people died while climbing the cables.
Now, only 300 people per day are allowed to climb Half Dome, and to do so, you must have a permit.
So, how do you get to be one of the lucky permit holders?
Permits are awarded in a preseason lottery for the entire summer hiking season.
A maximum of 300 permits are awarded per day, with 225 for day hikers and 75 for backpackers.
Applications are accepted during the month of March, regardless if you are hiking in June or September.
On the application, one person (called the team leader) can apply for up to six people for 7 different dates. The team leader is only allowed to apply once per lottery. If you apply multiply times, all of your applications will be removed from the lottery.
The trip leader or the alternate person listed on the application must be present at the sub-dome when the permits are checked. The permits are not transferable to other hikers.
It costs $10 to file an application, regardless of the number of people listed on the application.
What We Did: We submitted two applications, one under Tim’s name and one under my name. On the first application, Tim was listed as the team leader and I was listed as the alternate. On the second application, I was listed as the team leader and Tim was listed as the alternate. We spoke to a National Park Service representative on the telephone to make sure that this was acceptable and they told us that this is allowed. Every person in your team is allowed to file a separate application.
Update for 2018: I spoke to a supervisor at recreation.gov (the agency responsible for processing the permit applications) in March 2018 and they confirmed that you can be listed as a team leader on one application and as an alternate on a second application. But you can only be listed as a team leader on one application.
The lucky lottery winners are notified in mid-April. Tim was our lucky winner with a set date of July 6, 2017. My lottery entry was unsuccessful.
Once you are notified by email, you then have to two weeks to pay the $10 per person for the permit. The permit is refundable.
To get more information, visit the National Park Service website.
To file an applicaton, visit the recreation.gov website. If you have questions, give them a call at 877-444-6777.
What if you plan to visit Half Dome with kids? The youngest age we would recommend is 12 years old, and that is only if your child has lots of prior hiking experience and is very physically fit. When I spoke to the supervisor at recreation.gov, they told me that children can be listed on the permit application. I was told that there was no minimum age. However, if your child is listed on the permit, you will need to bring a government-issued ID as their form of identification.
Another 50 permits are awarded on a daily basis, depending on cancellations of other permits and no-shows on the trail. You can apply online for these permits two days before your anticipated hiking date. Visit recreation.gov to file your application for a daily permit.
What Are Your Chances of Getting a Permit?
As the Half Dome hike grows in popularity, your chance of scoring a Half Dome permit decreases.
In 2016, there was a 25% chance you would be awarded a permit. Compare that to 2015, with a 35% success rate and 2014 with a 45% success rate. In 2017, there were 26,963 applications, with a 19% success rate.
Does this sound discouraging?
To get a permit, you do need to be lucky, but there are some ways you can increase your chances.
If you can be flexible in your travel dates, you can greatly increase your odds of being one of the lucky permit holders.
Monday through Thursday are much less popular than Friday, Saturday, or Sunday. It’s almost impossible to get a permit for Sunday.
The few days from July 4 through July 8 tend to have slightly smaller crowds than the other times of the summer (and fewer applications for the Half Dome cables). This is the time that we visited Yosemite. On July 5, crowds were manageable, but by July 7 the park was getting very crowded again. Consider taking advantage of the July 4 holiday and hiking Half Dome if you have plans to visit Yosemite during the summer months.
September and October are the months with the fewest number of applications so it is easier to get a permit. In general, Yosemite will be a little quieter during this time also, since summer holidays are over.
If you are unsuccessful in getting a pre-season lottery ticket, you can apply for a daily lottery ticket, which is awarded two days before your anticipated hiking date.
Where am I getting all of these numbers? The National Park Service website has excellent data on lottery applications and success rates for the entire season. If you want to plan your Yosemite trip around your best odds for getting a Half Dome permit, I highly recommend that you take a look at their lottery statistics.
Hiking without a permit
What if you want to take your chances and hike without a permit? Rangers on the trail check permits just before the sub-dome and at other spots along the trail.
If you hike Half Dome without a permit, you risk paying a $5,000 fine and/or 6 months in jail.
Read more about hiking to Half Dome and Yosemite:
Post updated March 2018.
Do you have any more questions? Visit the National Park Service website for more information or comment below.
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