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10-Day Mammoth to Yosemite Teen Adventure

10-Day Mammoth to Yosemite Valley Teen Advenure

Trip Highlights:

Inyo National Forest

Yosemite High Country

Backcountry Camping

Alpine Meadows & Lakes

Ages 14-18

CO-ED

This trip is a guide's favorite itinerary from Mammoth to the popular Yosemite Valley. Participants will travel along the PCT & JMT and over the famous Donohue Pass into Yosemite’s beautiful Lyell Canyon before resupplying and continuing their transformative journey through some of the most scenic trails in the Yosemite high country. Participants will be blown away by the beauty of this itinerary, which will offer many beautiful sunrises at lakefront campsites along the way. Most trips have an opportunity to summit a major peak and/or explore nearby lakes, waterfalls, or geologic features. With instruction from our energetic educators/guides, participants will learn to appreciate this landscape more deeply while participating in fun daily activities and challenges. Risk-taking, freedom, and outdoor education programming, complimented by fun and support from others, leads to a positive and lasting adventure for all!

Join us for a Summer Camp Virtual Open House and a chance to win a 10-Day Teen Adventure Camp Giveaway.
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Age Range

14-18

Price

$2990

Length

10 Days

Length

10 Days

Mileage & Difficulty

60 Miles

Mileage & Difficulty

60 Miles
Check Availability

You will receive a full refund if you cancel within 48 hours of the original booking date.

Book with confidence knowing you can cancel for any reason up to 30 days before your trip date and receive a transferable lifetime credit that is good for use on any of our programs.

Not sure if your current trip dates work? Rest assured, you can change your trip date as many times as needed, provided you do so at least 30 days before the current and new trip dates.

YOUTH PROGRAM ADVENTURE SHUTTLE

Lasting Adventures will be providing transportation from near the San Francisco International Airport (SFO) and the greater Bay Area to our Youth Backpacking programs in Yosemite National Park. Skip the long drive and traffic while helping save the environment.

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2026 Departure Dates by Month

      July Departure Dates  

    • Tue, Jul 7th – Thu, Jul 16th

      August Departure Dates  

    • Tue, Aug 4th – Thu, Aug 13th

     

    Summer Camps in Yosemite: 10-Day Mammoth to Yosemite Valley Adventure

    This is a Sample Itinerary only. Itineraries differ weekly based on trailhead permits.

     

    Day 1: Meet your Counselors/Outdoor Educators. Get acquainted with the group and with gear. Group orientation and trip overview. Tuolumne Meadows tour, including geological and natural highlights. Evening activities and campfire to strengthen group bonds and set goals for the trip.

    Day 2: After a morning shuttle to Mammoth, start your journey at the Agnew Meadows trailhead near Mammoth Lakes. The first day’s journey begins with an easy walk along the San Joaquin River Valley. A short spur trail closes this 6.5-mile day and brings us to camp at Badger Lakes.

    Day 3: From Badger Lakes, a 6-mile hike continues generally uphill towards our destination, camp near the Rush Creek Headwaters. As we climb, the scenery gets better and better until we are treated to an up close view of many high alpine lakes with Mt. Ritter and Banner Peak and the spires of the Minarets in the background. Make a memorable camp up high below Donahue Pass.

    Day 4: Crossing Donahue Pass (11,056ft) in the morning, this 5-mile day brings us into Yosemite National Park, before dropping down into Lyell Canyon, where we will camp for the night.

    Day 5: Today will be an easier hiking day, covering 7 miles of gentle downhill along the Lyell Fork of the Tuolumne River. The gentle terrain through amazing meadows brings us to camp in a stand of Lodgepole pines along the river.

    Day 6: Resupply day! This challenging day covers 11 miles as we drop down to Tuolumne Meadows, where we will resupply our food, throw away trash, and use real bathrooms! Then we will head North towards Glen Aulin, visiting amazing waterfalls and camping near one of the park’s best sunset views.

    Day 7: Leaving Glen Aulin, we will travel through forests and start to see some different flora and fauna as the trip begins to lose elevation on our journey down to Yosemite Valley. We will camp after 5 miles at the hidden Polly Dome Lakes.

    Day 8: On this 6.5-mile day we will hike past Tenaya Lake, the largest lake in Yosemite and a perfect opportunity for a beach themed lunch break at its sandy and sunny eastern shore. Then we will regain some elevation heading towards camp by the classic Sunrise Lakes.

    Day 9: Today features our last climb of the trip and a strong contender for best view as well. We will start early to cover 9 miles over the summit of Clouds Rest, with views out to the high country of Yosemite and all the places we’ve visited. The trail then drops down into the forest as we journey towards Little Yosemite Valley.

    Day 10: The last day of the journey! We will hike 4.5 miles down past some of Yosemite’s most famous waterfalls, and back down to Yosemite Valley, with 3,000 foot granite walls and epic views in every direction.

    Other: On all of our summer youth programs, we have a daily morning meeting where youth engage in group games, share highlights, offer praise to each other, stretch, review maps and day itineraries, and set individual and group goals for the day. Also, whether breaking on the trail in the afternoon or evening at the campsite, our Outdoor Educators also facilitate additional opportunities for youth to develop a personal connection with nature. Problem-solving and initiative games are common, as are smiles. Additional outdoor skills are gained as we practice Leave No Trace principles and promote environmental stewardship throughout the length of the program.

    • Our trips are all-inclusive. We provide all meals, and we can provide, free of charge, high-quality gear, including Gregory backpacks and Big Agnes sleeping bags & pads. Group gear including tarps (or tents if necessary), all kitchen supplies, first aid, and water purification is also included. See the Youth Summer Camp Equipment List for more information.
    • As needed, see our Frequently Asked Questions, Yosemite Adventure Shuttle info, and/or Yosemite Lodging Options.
    • Should weather, fire, and/or delayed seasonal openings affect the chosen itinerary, a different itinerary will be offered. Lasting Adventures is recognized for its commitment to safety and risk management. In this regard, the summit of peaks will not be attempted when clouds are in close proximity.
    • Should reservations be necessary to enter Yosemite, your booking confirmation with us will serve as your entry reservation for the days booked with us. This should not be confused with entry fees, which still may be required. hi scott

    Yes, our trips are perfect for first-time backpackers and those with prior backpacking experience. Our professional, caring, and fun Outdoor Educators design innovative, engaging ways to teach and orient all participants to backpacking during the first days of a trip, and by the end, they come home feeling quite accomplished backpackers. Additionally, often, those with backpacking experience are past participants returning for different itineraries, more exploration, and additional lasting memories. 

    For ages 11-13, we recommend our 6-Day Young Adventurers program. For more mature/physically developed 13-year-olds and older youth, they can consider our 6-, 10-, 13-, and/or 20-day programs. It’s really up to your child and how much fun and memorable outdoor explorations they are after.

    Over 50% of our participants come without friends, though this can vary by trip. From day one and throughout the program, our Outdoor Educators facilitate activities and games to help all youth bond. It is almost too common for youth who come with friends to leave with new, stronger friendships. It’s just the nature of how we have run our programs for the past thirty years: to be all-inclusive and fun for every attendee.

    Historically, we experience increasing bookings from December through June, with almost 50% of bookings occurring in the late spring. You are welcome to book early and check back periodically to monitor group composition, while knowing we allow date changes as often as you like. Also, during our booking period, we continuously monitor group composition to ensure similar age and gender distributions across groups.

    Yes, for a detailed packing list, see the Sierra (CA) Youth Summer Camp Packing and Equipment List.

    Yes, thanks to our partnerships with leading gear companies, we can provide backpacks, sleeping bags, pads, trekking poles, and tents (as needed). There will be a field to indicate what you would like to borrow when you complete the required forms after registering.

    Youth should be able to carry a backpack of 25-45lb, and not to exceed ⅓ of their body weight. The weight is a combination of their personal gear and part of the group gear. Always bigger youth carry more, and smaller youth carry less.

    Our Outdoor Educators are among the best professionals in the field, sharing a passion for the outdoors and for sharing it with others in a fun and caring manner. All staff undergo a rigorous application process and background check, during which they must demonstrate experience in outdoor recreation, backpacking, working with youth, risk management, and customer service. All staff must possess a Wilderness First Responder certification and also pass a Department of Justice fingerprint background check. Our staff are trained yearly by us, and they are consistently supervised throughout the season with required pre- and post-trip meetings/reviews. 

    We always have at least two staff members for each youth group that doesn’t exceed 10 youth.

    We eat good food!

    • Breakfasts and dinners are prepared and eaten together.
      • Typical breakfasts might include breakfast burritos, oatmeal, eggs & breakfast meats, dried fruit, bagels, etc.
      • Dinner examples include a variety of pastas (Mac & Cheese and others), burritos, stews, veggies, etc.
    • Lunches consist of trail food, fruits, and veggies. Examples include pita, bagels, salami, cheeses, hummus, fresh veggies, dried fruits, peanut butter, trail mix, and energy bars. Lunches are carried in a shared bear can or stuff sack that the participants can pull from as needed.

    Don’t worry, we’ve got you covered. We have a long history of meeting the needs of almost all dietary restrictions, including some very complex ones. When registering, you will complete a questionnaire to provide a brief overview of your needs. Later, you will complete a more detailed Medical form to provide additional information. The staff guiding your trip will call you the day prior and, when they are packing the food/gear for the trip, will go over your needs and modifications in more detail. Although we have many options in stock, we respect it if you ultimately decide to bring your preferred substitutions.

    We operate traditional wilderness backpacking trips, and participants should prepare themselves for not having access to bathrooms/showers. Participants will be instructed on how to conduct their business in the wilderness while following the Leave No Trace Principles. There will also be time to rinse off, as we camp near rivers, streams, and/or lakes daily. Less often, we may stay in campgrounds with toilets or outhouses.  

    The wildlife in the parks we operate in is not really a significant threat. Black bears are naturally afraid of people and are easily scared away. In addition to the bears, we encounter many other animals and critters, including deer, squirrels, marmots, birds, and even rattlesnakes and scorpions. We work with participants to teach them to respect animals and wildlife, so we do not encounter any issues.

    Unfortunately, no. We go by the principle that no news is good news. Because these groups backpack in wilderness areas, there is little to no cell service, and communication is limited. However, group leaders use satellite technology to stay in contact with our office and send the required nightly “All-ok” check-ins, including their GPS location, which aligns with their intended itinerary on file with our office and in each park’s systems. They can also send custom messages for any other emergencies or issues requiring support. As always, if there is ever any emergency or concern involving your child, you will be one of the first to be notified.

    If you need to reach us, please note that both our 1-800-513-8651 voicemail and Staff@LastingAdventures.org email are actively monitored by multiple members of our on-call Admin team. Your contact will be responded to as soon as possible. 

    About one-two weeks after the camp has concluded, you will receive an email that includes a daily journal, trip highlights, and a link to pictures from the trip.

    Lasting Adventures has been operating youth wilderness backpacking trips since 1997. We are highly experienced in the industry and know the parks we operate in better than many others. Additionally, the park staff knows us and respects our experience. 

    With over 30 years of experience operating youth wilderness camps, Lasting Adventures has faced a wide range of issues, including bug bites, twisted ankles, illnesses, and wildfires. If there is an emergency with your child or their group, you will be notified as soon as possible. Our highly trained staff also has direct contact with our on-call admin team and with the dispatch for Ranger and Search and Rescue (with helicopter support) in the parks, as needed. Fortunately, because we focus on managing risks and educating youth on safety protocols from day one, our evacuation needs have been minimal.  

    As far as wildfire concerns go, we are fortunate to operate in alpine areas (or beach areas in Olympic) where the risk of rapid wildfire growth is minimal. (Simply put, our normal hiking speed is typically faster than a wildfire can spread in these areas.)  However, if a wildfire erupts, park personnel are dispatched promptly and will support an evacuation if necessary. The bigger threat is unhealthy smoke levels coming from wildfires many miles away. When a distant wildfire erupts, we use an established evacuation criterion based on smoke levels and wind patterns, which we monitor consistently while in contact with field groups.

    Yes, we operate a shuttle from San Francisco International Airport with additional stops in the Bay before heading to Yosemite National Park. See here for more information: Yosemite Adventure Shuttle.

    Yes, Lasting Adventures is a nonprofit with the mission to foster environmental stewardship, teach responsible recreation, and provide opportunities for personal growth by facilitating impactful wilderness experiences. You can see here to Apply For a Scholarship.

    Lasting Adventures offers a very forgiving and structured Cancellation Policy, with lifetime, transferable credit always available up to 30 days prior to the trip. For a full description, visit our Terms and Conditions page.

    Yes, see here for our Parent Reference List

    Also, feel free to search our Google and TripAdvisor reviews, which feature hundreds of testimonials from past summer camp participants and parents.

    • Our trips are all-inclusive. We provide all meals, and we can provide, free of charge, high-quality gear, including Gregory backpacks and Big Agnes sleeping bags & pads. Group gear including tarps (or tents if necessary), all kitchen supplies, first aid, and water purification is also included. See the Youth Summer Camp Equipment List for more information.
    • As needed, see our Frequently Asked Questions, Yosemite Adventure Shuttle info, and/or Yosemite Lodging Options.
    • Should weather, fire, and/or delayed seasonal openings affect the chosen itinerary, a different itinerary will be offered. Lasting Adventures is recognized for its commitment to safety and risk management. In this regard, the summit of peaks will not be attempted when clouds are in close proximity.
    • Should reservations be necessary to enter Yosemite, your booking confirmation with us will serve as your entry reservation for the days booked with us. This should not be confused with entry fees, which still may be required. hi scott

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    Specific location along Tioga Road is dependent on permitting and conditions. Expect a location between the Ten Lakes Trailhead and Tuolumne Meadows Wilderness Center. In fewer instances we might move your meeting location to Yosemite Valley. Updates will be sent in 2-4 week advance emails