Find a Trek

Inspirational, easy to join, open to all.

  • 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

  • Grand Canyon South Rim

    Grand Canyon Challenge

    4 days | 25 Miles

    Mar, Apr, May, Sept, Oct, Nov

  • Kings Canyon National Park

    Tehipite Valley

    6 days | 45 Miles

    MAY, JUNE, SEPT, OCT

  • John Muir Wilderness

    Hell For Sure Challenge

    6 days | 40 Miles

    JUNE, JULY, AUG, SEPT

  • California’s King Range

    Lost Coast Challenge

    4 Days | 25 Miles

    April, May, June

  • Auyuittuq National Park

    Baffin Island

    Up to 14 Days | 60 Miles

    Summer 2026

  • Grand Canyon North Rim

    Thunder River

    6 days | 32 Miles

    Apr, Sept, Oct

  • Kings Canyon National Park

    Mount Goddard

    6 days | 50 Miles

    Aug, Sept

  • Team posing on trail in Grand Canyon.

    ALL LOCATIONS

    TSX Private Group Experiences

    custom duration | Miles

    all months

  • 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 | 24 Miles

    May, Sept, Oct

  • Grand Canyon South Rim

    The Confluence

    7 days | 50 Miles

    MAR, OCT

  • Grand Canyon North Rim

    Jumpup Canyon

    6 days | 32 Miles

    Mar, Apr, Oct, Nov

  • Grand Canyon South Rim

    Escalante Route

    5 days | 26 Miles

    MAR, APR, MAY, SEPT, OCT, NOV

  • Yosemite National Park

    Triple Divide Challenge

    6 days | 48 Miles

    July

  • Grand Canyon North Rim

    Nankoweap

    5 Days | 28 Miles

    Oct

  • Kings Canyon National Park

    Kings Canyon Discovery Challenge

    5 days | 24 Miles

    July, Aug, Sept

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Welcome REI adventurers

For a limited time, we’re offering a $200 REI gift card to new participants who join one of our 2025 backpacking experiences. With REI Adventures now 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 Jan 30th

The $200 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 January 30th, 11:59pm.