Deep in the Aysén region, far from the classic routes of Patagonia, the Granite Towers of Avellano rise dramatically from untouched valleys and lenga forests.

This is a true backcountry expedition — designed for travelers seeking immersion, challenge, and access to landscapes rarely reached by conventional routes.

The journey unfolds through remote valleys, river crossings, and alpine terrain, leading to a dramatic viewpoint beneath towering granite spires.

More than a trek, this is a shared expedition experience — where effort, teamwork, and the rhythm of the wilderness shape each day.

• Multi-day backcountry trekking

• River crossings & alpine exploration

• Expedition-style camping

• Route finding in remote terrain

• Team-based wilderness experience

Day 1 – Arrival to Aysén

Arrival in Balmaceda

Transfer to Cerro Castillo region

Expedition briefing, gear check, and preparation

Day 2 – Into the Avellano Valley

Transfer to trailhead

Begin trekking through forests and river valleys

Entry into remote terrain and first expedition camp

Day 3 – Deep Valley Exploration

Continue trekking deeper into the valley

Transition from forest to alpine terrain

Camp in high basin with mountain views

Day 4 – Granite Towers Approach

Ascent toward the main viewpoint

Arrival beneath the granite towers

Return to camp or begin descent depending on conditions

Day 5–6 – Return Through the Valley

Descent through alpine and forest landscapes

Progressive return to trailhead

Transfer back to Cerro Castillo area

Farewell Patagonian dinner

Day 7 – Departure or Optional Hike

Optional hike in Cerro Castillo region

Transfer to Balmaceda Airport

This itinerary is a reference expedition designed to showcase the journey. Routes and pacing may vary depending on weather, conditions, and group dynamics.

Difficulty: Moderate to Challenging
Daily Hiking: 6–9 hours
Terrain: Alpine passes, valleys, river crossings, unmarked sections

This expedition requires a good level of fitness and a willingness to adapt to changing Patagonian conditions.

This journey follows a true expedition format:

• Lightweight wilderness camping

• Participants carry personal gear

• Collaborative camp dynamics

• Optional supported version available (mules / logistics support)

• Adventure-driven travelers

• Trekkers seeking remote and authentic Patagonia

• Small private groups

• Travelers looking for physical challenge and immersion

• Explorers comfortable in off-the-grid environments

• Cerro Castillo trekking extensions

• Patagonia National Park Extension

• Patagonia Multi-Adventure Extension

• Horseback Expedition Extension

• Private expedition guide

• All ground transportation during the program

• Transfers from/to Balmaceda Airport

• All expedition logistics and coordination

• Camping equipment

• Sleeping gear uppon request

• Accommodation before and after the trek

• All meals during the expedition

• Packed lunches during trekking days

• Park access and permits