2025

  • TSX Challenge team on summit of Mt. Whitney with banner.

    Sequoia & Kings Canyon National Parks

    Trans-Sierra Xtreme Challenge

    1 Week | 75 Miles | July, Aug, Sept

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  • Thunder River

    Grand Canyon North Rim

    Thunder River

    6 days | 32 Miles | Apr, Sept, Oct

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  • Crossing the Colorado River by Raft on Grand Canyon Rim-to-Rim backpacking trek.

    Grand Canyon North and South Rims

    Rim-to-Rim Xtreme Challenge

    6 days | 42 Miles | May, Oct

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  • The Confluence

    Grand Canyon South Rim

    The Confluence

    7 days | 50 Miles | MAR, OCT

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  • Jumpup Canyon

    Grand Canyon North Rim

    Jumpup Canyon

    6 days | 32 Miles | Mar, Apr, Oct, Nov

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  • Escalante Route

    Grand Canyon South Rim

    Escalante Route

    5 days | 26 Miles | MAR, APR, MAY, SEPT, OCT, NOV

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Bring friends and save

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.

Welcome REI Adventurers

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.