We invite you to an unparalleled High Mountain adventure in the heart of the Cajón del Maipo. Cerro Marmolejo (6,108 m) is not only the southernmost volcano in the Andes mountain range but also holds the title of the southernmost 6,000m peak on the planet. This expedition is a serious challenge that will reward you with unique views of its large glacier and caldera.

I am Joaquín Cisternas, a leader with 10 years of experience in Chile, accredited by UIMLA and ACGM (Chilean Association of Mountain Guides).

The Challenge: 6 Days of High Altitude Mountaineering

This expedition is designed for mountaineers with good physical condition and prior High Mountain experience , ready to face a 6,000m peak known for being very icy.

• Duration: 6-day expedition.
• Total Distance: Approximately 45 km round trip.
• Total Positive Elevation Gain: ~3,822 meters.
• Maximum Altitude: 6,108 m.

Summit Day Details (Day 4):

The summit day is technical and begins around 3:00 AM, aiming to reach the summit with the first rays of light (approx. 8:00 AM). The ascent requires us to rope up and use technical equipment due to the presence of crevasses during our traverse over the glacier.

Your Included Logistics and Safety

So you can focus solely on the climb, we handle the operational complexity and safety:

• Certified Guides: Led by UIMLA Certified Guides.
• Transportation: Includes transfer from Cajón del Maipo (or the airport) to the trailhead.
• Meals: Includes breakfasts, snacks, and dinners during the expedition.
• Common Equipment: Tents, kitchen set, and climbing rope.
• Portage: Portage of common equipment.
• Insurance: Accident insurance.

⚠️ Mandatory Personal Gear (Must Bring)

Due to the extreme conditions of the Marmolejo, it is mandatory that every participant brings their own specific High Mountain gear.

• Footwear: Double boots or similar (essential).
• Layering: Layer system (including a very warm down jacket for the second layer, and an impermeable third layer).
• Technical Gear: Trekking poles, ice axe (piolet), and crampons.
• Accessories: Snow gloves, Category 4 sunglasses (recommended) , headlamp, and sleeping bag.

(If you require gear, contact us for rental options.)

Are you ready for the challenge of a lifetime? Contact us to inquire about a pre-acclimatization plan and secure your spot. We offer deals for couples or groups with 3+.