2025 Trans-Sierra Xtreme Challenge Launch – Best Prices of Year
Join a 2025 Trans-Sierra Xtreme Challenge trek with our pricing of the year.
Today we are launching our 2025 Trans-Sierra Xtreme Challenge trek dates. This is our flagship route, a week-long trek across the Sierra to the summit of Mt. Whitney (14,505’).
Our pricing is $2,199 per person. It is the best pricing of the year, and one of the best opportunities to join an epic backpacking experience that can inspire for a lifetime. This price will increase $100 per month on the 1st of every month for the next 12 months until we are sold out. We have 48 permit spots available. A deposit of $500 is required to secure your spot.
If you’ve been considering this trek, now is the best time to sign up. We have 4 dates available in July, August, and September, with one trip already reserved.
Sign up link: Trans-Sierra Xtreme Challenge
TSX Challenge is the #1 provider of guided backpacking experiences in Sequoia and Kings Canyon National Park, and to the summit of Mt. Whitney. We pride ourselves on making experiences like this affordable and accessible. We hope you can join us.