An 18‑day guided climb of Aconcagua follows a careful acclimatization plan from Mendoza through high Andean camps to the 6,962 m summit. Expect long approach days, thin air, and alpine weather — this is a logistical and physiological challenge more than a technical one.
More ways to explore the area's outdoor wonders
You stand at the Laguna de Horcones trailhead as the valley wind pushes dust across gravel, the peak of Aconcagua hanging like a pale shoulderbone against the sky. Each step northbound feels deliberate: the route moves from scrub and stone to skeletal scree, then into an alpine world where wind and altitude set the pace.
Difficulty
expert
Duration
18 days
Fitness Level
High aerobic endurance, multi‑day trekking fitness, and prior multi‑day backpacking or high‑altitude experience are strongly recommended.
Wildlife
History
Aconcagua’s first recorded ascent was in 1897; the peak has long been a landmark on Andean trade and exploration routes and is now a Seven Summits objective for climbers worldwide.
Conservation
Aconcagua Provincial Park enforces permit systems, limits on group size and strict waste management; visitors should pack out trash, avoid disturbing fragile alpine vegetation and respect mule lines.
Reserve your spot on the 18-Days Climb Aconcagua Highest Peak in South America Guided Tour today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Prioritize acclimatization
Follow staged climbs to Confluencia, Plaza de Mulas and Nido de Cóndores — don’t rush altitude gains above 300–500 m per day when possible.
Sun and wind protection
UV intensifies with elevation — use high‑SPF sunscreen, glacier sunglasses and a windproof shell for summit pushes.
Pack smart for high camps
Bring a rated -20°C sleeping bag and dry bags for clothing; nights in Colera can be brutally cold even in summer.
Know evacuation limits
Plan for radios and contingency days; mountain weather and AMS are the common reasons for descent.
Mountaineering boots (B2/B3)
Stiff, insulated boots support long days on scree and cold nights at high camps.
summer
Down parka (800+ fill)
Critical for wind‑chill at 5,000–6,900 m during summit pushes and nights.
summer
Sleeping bag (-20°C rated)
High camps drop well below freezing; a warm, compact bag preserves sleep and recovery.
summer
Glacier sunglasses & high SPF sunscreen
UV and reflected glare increase risk of snow blindness and severe sunburn at altitude.
summer