Summit by Moonlight: A 4-Day Half Dome Backpacking Adventure
Four days of backcountry rhythm, granite exposure, and a cable-assisted summit that changes your idea of a view
You set off from Yosemite Valley before dawn, headlamp cutting a pale tunnel through the pines as the valley exhales mist from the river. Underfoot, the trail is a steady, honest grade that loosens the city tension from your shoulders. On this guided 4-day backpacking route, the travel feels deliberate: long stretches of talus and dogwood, a nightly camp beside a riffle of water, and a final morning when the cables to Half Dome hum with the weight of climbers ascending into a light so clean it feels almost invented. This is a trip that rewards patience and simple, physical persistence. The technical high point is the cable ascent, but the richest moments often come at camps when the Merced River dares you to linger and the forest hushes into something like counsel. The itinerary starts in Yosemite Valley, threads through Little Yosemite Valley and Sunrise Lakes country, and stages the summit move for optimal light and safety. The full approach to Half Dome from Yosemite Valley is commonly 14 to 16 miles round trip with roughly 4,800 feet of elevation gain to the summit; the four-day backpacking schedule breaks that climb into manageable days and covers roughly 25 to 30 miles total depending on campsite choices. Beyond the numbers, the terrain tells the park story in granite and glacier-sculpted ridges. Half Dome itself is a monolith of Cretaceous granite, its sheer face exposed by millennia of glacial exfoliation and jointing. Native Paiute and Miwok people knew this landscape long before it became a national park; for them the domes and falls were woven into origin stories and seasonal travel routes. The modern history of Yosemite brings names like John Muir and George G. Anderson, who made the first recorded ascent of Half Dome in 1875 by drilling wooden pegs to climb the face. Today the cables replace those primitive aids, allowing hikers with steady nerves to scramble the final, exposed section. Cultural texture lives in the valley communities too. Park rangers, backcountry stewards, and guides who grew up in nearby towns add stories about seasonal snowpack, historically significant climbs, and the quirks of Yosemite weather. Guided trips, like this offering, handle logistics many independent hikers find onerous: wilderness permits for overnight camping, Half Dome cable permits when in season, and the bear canisters required in the backcountry. The tour price also reflects those inclusions; the listed starting price is about 2150 USD per person and includes guided leadership, camp meals, and some comfort provisions. Practically, time your trip for late spring through early fall when cables are up and the weather is stable; the operator runs select dates from late May through October. Expect trail surfaces that vary from packed dirt and granite slabs to scree and roots. Day four often delivers the summit—either for sunrise or sunset depending on the schedule—and with it a view that compresses the park from vertical cliffs to the meandering Merced River below. Safety and preparation are straightforward but nonnegotiable. Sturdy backpacking boots with good traction, a properly fitted pack, and daily water discipline will make the trip. On the cables, gloves and a calm, steady gait matter as much as raw strength; if exposure makes your stomach tight on a good day, consider whether a guided ascent is the right choice for you. The guides that lead these tours bring not only route knowledge but also skills in pace setting, campcraft, and emergency protocols. For photographers, dawn light on Half Dome skews cool and clean; bracket exposures on the summit, and carry a lightweight tripod for campfire-lit starscapes. For food, the difference between a tired, gray camp and a restorative evening is often a well-provisioned meal; guides in this program emphasize fresh, satisfying camp cuisine rather than dehydrated monotony. If you go, leave space in your schedule the day after the trip for gentle recovery and valley exploration. Grab a coffee at Degnan's Kitchen, stroll the meadows near Yosemite Falls, or make reservations for a post-hike dinner at the Ahwahnee Dining Room to celebrate. In short, this four-day Half Dome backpacking adventure delivers an honest, human-paced route to one of North America’s most iconic granite summits. It’s not a casual walk in the park but it isn’t mountaineering either; the payoff is a clean-lined summit, an intimate sense of place, and nights spent under a sky that reorients scale. If you can carry your gear, sleep on good ground, and accept a little exposure, the climb up the cables is the kind of achievement that reorders priorities long after the boots are put away.
Trail Wisdom
Start Early Each Day
Trail miles in Yosemite add up with heat and exposure; begin before sunrise on summit day to avoid afternoon storms and congestion on the cables.
Train for Sustained Uphill
Prepare with back-to-back long hikes and weighted walks; the trip is endurance-based rather than technical for most sections.
Hydrate and Purify
Plan for 3 to 4 liters per day and carry a reliable water filter; creek water is plentiful but needs treatment.
Practice Cable Etiquette
Bring gloves and keep three points of contact on the cables, passing only at designated pullouts to keep traffic flowing.
Local Knowledge
Hidden Gems
- •Sunrise Lakes for evening alpenglow and few other campers
- •Little Yosemite Valley campsites with close river access
Wildlife
Black bear, Mule deer
Conservation Note
Yosemite requires wilderness permits and enforces bear canister rules to protect wildlife; practice Leave No Trace and pack out all trash to minimize impact.
Half Dome was first ascended by George G. Anderson in 1875 using hand-drilled wooden pegs; the cable system in place today was installed in the early 20th century and has evolved since.
Seasonal Guide
spring
Best for: Waterfalls at peak flow, Cooler trekking temperatures
Challenges: Residual snow on higher approaches, Variable weather and muddy trails
Late spring is dramatic for waterfalls and wildflowers but expect lingering snow above 7,000 feet and rapidly changing conditions.
summer
Best for: Stable weather windows, Cables typically installed, Long daylight hours
Challenges: Heat in mid-day valley sections, Crowds on popular trail sections
Summer is the optimal season for cable ascents and reliable trail access, though busy weekends and heat waves can increase difficulty.
fall
Best for: Fewer crowds, Crisp high-country mornings
Challenges: Shorter days, Potential early snow at higher elevations late in season
Early fall offers cooler nights and clearer skies; by October check for early snowfall and cable removal dates.
winter
Best for: Solitude in the valley, Snow-covered granite vistas
Challenges: Cables removed, heavy snow and ice, Requires alpine skills and equipment
Winter transforms the route into a mountaineering objective; this guided backpacking product is not suitable in snowy months.
Photographer's Notes
What to Bring
Lightweight Backpacking TentEssential
A durable, comfortable shelter for four nights in backcountry camps.
Approach-Grade Boots or Stiff Trail RunnersEssential
Good traction and ankle support matter on slabs, scree, and the cable approach.
Gloves for Cable AscentEssential
Grippy leather or synthetic gloves protect palms on the metal cables and slick granite.
Water Filter and 3L Capacity BladderEssential
Reliable treatment and adequate water storage are critical for long days between reliable sources.
Common Questions
Do I need a Half Dome permit for this trip
Yes, Half Dome cables require a permit during the operating season; guided tours typically secure necessary wilderness and Half Dome permits for participants.
How hard are the cables and is special equipment required
The cables require steady footing and no specialised climbing gear; gloves and a calm approach are recommended. If you have a strong fear of exposure, speak to guides about alternatives.
What is the typical daily mileage
The full itinerary usually totals about 25 to 30 miles over four days, with daily mileage tailored to the group and campsites.
Is food provided on the tour
Guides provide camp-cooked meals and snacks as part of the trip package; check dietary requirements at booking.
Will I have cell service
Expect limited to no cell service in large sections of the backcountry; Yosemite Valley has better reception but plan for offline navigation and communication.
Are bears a concern and how is food stored
Yes, black bears are present; backcountry regulations require bear-resistant canisters for overnight trips and guides enforce strict food storage protocols.
What to Pack
Sturdy boots for granite sections; 3L water capacity and filter for long stretches between reliable sources; warm mid-layer for summit exposure and camp nights; bear-resistant canister as required by park regulations
Did You Know
Half Dome was first climbed in 1875 by George G. Anderson using hand-drilled pegs and ropes, a historical ascent documented in park archives.
Quick Travel Tips
Book wilderness and Half Dome permits early; fly into Fresno Yosemite International Airport for shortest drive; plan for limited cell service in the backcountry; confirm gear weight limits with your guide before departure
Local Flavor
After the hike, treat yourself to a warm meal at the Ahwahnee Dining Room or grab a casual sandwich at Degnan's Kitchen. For beer and conversation, the Yosemite Valley Lodge area offers relaxed après-hike options and ranger talks that deepen your park appreciation.
Logistics Snapshot
Closest airport: Fresno Yosemite International Airport (FAT) ~1.5–2 hours drive; trailhead: Happy Isles/ Yosemite Valley trailheads; driving distance from Yosemite Village: immediate; cell service: spotty outside valley; permits: wilderness permit and Half Dome cable permit required (guides often secure these)
Sustainability Note
Yosemite enforces bear canister use and Leave No Trace. Use established campsites, pack out all waste, and avoid disturbing riparian vegetation to help protect fragile watershed areas.