New TSX experiences for 2026, and beyond!
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Auyuittuq National Park
14 days | 60 Miles | August
| Select Date | Aug 2 – 15, 2026, Aug 16 – 29, 2026, Aug 1 – 14, 2027, Aug 15 – 28, 2027 |
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Gila Wilderness
5 days | 25 Miles | March, April, May
| Select Date | September 18 – 22, 2026, Mar 29 – Apr 2, 2027, Sept 17 – 21, 2027 |
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No matter your age, background, shape or size, we believe you have what it takes to accomplish incredible things. Whether it’s summiting Mt. Whitney (14,505′), or sleeping at the bottom of the Grand Canyon, backpacking our nation’s remote backcountry has the ability to change people’s lives. Our trails have had an incredibly positive impact on our family, friends and community. We hope it can have an equally positive impact on you, renewing conviction you can accomplish anything you put your mind to.
Every new year deserves a new goal, and we’re making it easy to set a new goal with the whole crew. For a limited time, book a 2026 TSX Challenge trek save and up to $1000 when you sign up together. The more friends you bring, the bigger the adventure and the savings:
2 Hikers: Save $100 each
3 Hikers: Save $150 each
4 Hikers: Save $250 each
No need for a promo code; discounts apply automatically as you add participants to your booking, and reduce the deposit due today. Trek availability is limited.
For a limited time, we’re offering a $150 REI gift card to new participants who join one of our 2026 backpacking experiences. With REI Adventures closed, we invite you to join us at TSX Challenge. Here’s how it works:
1. Find your trek
2. Use coupon code “REI” at checkout
3. Make $500 deposit by Feb 15th
The $150 gift card will be issued to you 60 days before your trek start date via email. Trek must be paid in full prior to issuance. This offer may not be combined with other offers. Promotion ends Feb 15th, 11:59pm.
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