The Trans-Sierra Xtreme (TSX) Challenge and Grand Canyon Challenge are a series of inspirational guided backpacking treks across Kings Canyon and Sequoia National Park, and Grand Canyon National Park. They are among the most challenging and rewarding experiences that California and Arizona have to offer. You’ll traverse awe-inspiring terrain, completely unplugged, with a small group and incredibly experienced guides. While the treks can be intense, no prior backpacking experience is required and all ages are welcome. Just bring your mental toughness, positive attitude and be ready for the challenge of a lifetime.

Trans-Sierra Xtreme Challenge

1 week, 75 miles, with Mt. Whitney (14,507ft)

Map of Trans-Sierra backpacking trail to Mt. Whitney

The Trans-Sierra Xtreme Challenge is an inspirational one week, 75 mile backpacking trek across some of the most remote, least traveled regions of California’s Sierra Nevada mountains to the summit Mt. Whitney (14,505ft).

View trek dates and itinerary

Grand Canyon Challenge

3 nights, 35 miles, loop with Colorado River

Map of Trans-Sierra backpacking trail to Mt. Whitney

The Grand Canyon Challenge is an inspirational 3 night, 35 mile backpacking trek across remote canyon terrain, into hidden gorges, and to the Colorado River, open to motivated individuals of all ages.

View trek dates and itinerary

Sample life on our trails

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Video by Delanie Lowe

Join us for an experience that will last a lifetime.

Serious wilderness.

You’ll spend one week, unplugged, traversing some of the most remote, least traveled regions of the Sierra and Grand Canyon with a small group and two incredibly experienced guides.

Lifelong memories.

Our treks are open to motivated individuals of all ages. So grab your kid, grab your parent, grab your best friend for life, and create memories that will last a lifetime.

Rugged inspiration.

Get knee-deep in high Sierra steams, scale snow covered passes, drop into remote canyons, summit jagged granite peaks. And we’re still keeping the best part a secret.