About our Xtreme Hike

We can’t wait to bring the CF community together for Xtreme Hike!

This year we are hiking both virtually and safely in-person at Yosemite Xtreme Hike.

Every 2021 CF Foundation event will feature several virtual components and experiences to help make a difference for people living with cystic fibrosis. The CF Foundation will also host a very small number of in-person events that can safely be held outdoors, including our Yosemite Xtreme Hike. The safety of our community is our first priority and we will continue to evaluate the status of the event moving forward. Please note that this event will be transitioned to a virtual event if it is determined unsafe to hold it in person come November. However, our chapter is offering a one day Tahoe Xtreme Hike on July 24, 2021 that all Yosemite Hikers are invited to participate. Your fundraising for the Yosemite Hike will cover any suggested fundraising for the Tahoe hike. If you would like to participate in the Tahoe Xtreme Hike, you can find out more information and register here - fightcf.cff.org/tahoehike.

Register today and stay up to date on how our chapter plans to safely bring the community together and make CF stand for Cure Found.

The Hiker’s Journey

The Cystic Fibrosis Foundation’s Xtreme Hike program is about reaching new heights physically and philanthropically.  It is a journey of passion, determination, and personal triumph, as much as it is an opportunity to make a difference in the lives of people with cystic fibrosis.

The journey starts the moment you sign up. You will receive personal coaching, participate in training hikes – even virtually - and connect with a community of people who share your aspiration to reach new heights. 

How Do I Participate?

Register. Register and participate virtually or safely in-person in this year’s Yosemite Xtreme Hike event and help us stay the course and advance our mission in an uncertain time. Here are registration options:

Register to hike safely in-person. We are excited to be hosting a one day in-person local hike experience.  With the safety and well-being of our community in mind we will require that all those who wish to attend must register on our website, no walk-up registration will be available. Select “Hiker” when registering for the event.

Register as a Virtual Hiker. While we may not be together in person, we will be together in spirit, showing the strength of our community and passion to find a cure for all people living with cystic fibrosis. Select “Virtual Hiker” when registering for the event.

Recruit. Recruit others to participate with you! Friends, family, and co-workers can join you virtually from anywhere in the world.

Fundraise. Fundraise online by leveraging the tools in the Participant Center, the Fight CF mobile app, and Fundraise on Facebook to reach your goal. Create a virtual passion fundraising event by developing a fundraising event through your favorite hobby, activity, or passion.

Suggested Fundraising Minimum: $2,500

Share your Journey. Wear a Xtreme Hike shirt, team shirt, or your Cystic Fibrosis Foundation branded apparel, while you train and hike on your own local trail or within your neighborhood!  Track your activity on the Fight CF mobile app so you can hike with others participating in the event. Share how you decided to hike this year by sharing your story and posting a selfie on Facebook, Twitter, and Instagram.  Make sure to tag the Cystic Fibrosis Foundation (@CF_Foundation) and our local chapter at (@CFFNorthernCalifornia) and (@CFFSacramento) and use the hashtag #XtremeHike to keep the energy and momentum going strong!

What makes the Xtreme Hike Unique?

Since 2012, the Northern California Xtreme Hike has hiked over 159 miles in iconic locations including Yosemite National Park & Lake Tahoe and raised over $750,000 in support of finding a cure to cystic fibrosis. For our 10th year, we will be hiking in the beautiful Yosemite National Forest. Join us on this amazing journey to view new sights and climb higher heights.

As the name states, this is a challenge of xtreme proportions. For many, you are committing to hiking further and raising more money than you have ever done before. As participants prepare for the physical challenge, hikers are encouraged to raise $2500 through their personal and social media campaigns. Not to worry, we are here to support you every step of the way!

You will not want to miss this opportunity to meet like-minded individuals and challenge each other to help cure cystic fibrosis one step at a time!

Hikers ages 16 and up may participate. Click here to read the full Hiker Age Policy.


Lisa Orchard: lorchard@cff.org | (916) 625-0500

Teresa Wang: twang@cff.org | (415) 989-6500

Thank you Sponsors.

We want to thank our generous national sponsors - gold national sponsor, AbbVie, and our silver national sponsors, Vertex, Genentech and Gilead.  Thank you to American Airlines, our Outstanding Corporate Supporter.


In lieu of cash, we ask that you make all payments/contributions to the CF Foundation with a credit card or check. We accept all major credit cards. Thank you for understanding.