Buddhist chorten and prayer flags beneath snow-covered Himalayan peaks in Nepal.

High Altitude Preparation

High Altitude Preparation

High Altitude Preparation brings together Life Happens Outdoors guides on acclimatisation, altitude sickness, hydration, sleep, pacing, oxygen, medication, fitness and safety on high mountain trips.

This section helps readers understand what happens to the body as altitude increases, why fitness alone does not protect you from altitude and how thoughtful preparation can make trekking and mountaineering safer and more enjoyable.

Whether you are preparing for Kilimanjaro, Everest Base Camp, Aconcagua, Chimborazo, Cotopaxi, Mont Blanc or your first high altitude adventure, these articles provide clear, practical and experience-led guidance before you go higher. Use this section to prepare honestly, understand the risks and choose an objective that matches your fitness, skills and experience.

Life Happens Outdoors trekkers standing on snow beneath a steep alpine peak during a high altitude preparation climb.

High Altitude Preparation for First Time Trekkers and Climbers

High altitude preparation brings together acclimatisation, fitness, pacing, hydration, sleep and symptom awareness. Start here to understand how these elements work together before choosing or beginning a high mountain objective.

START WITH THIS GUIDE

EXPLORE HIGH
ALTITUDE ADVENTURES

From a first high altitude trek to a major 6,000-metre expedition, choose an adventure that matches your fitness, skills, experience and ambition.

Sunrise on the summit during the Climb Kilimanjaro Expedition with the Life Happens Outdoors team.

Climb Kilimanjaro

Africa’s highest peak and a powerful first high altitude objective.

EXPLORE GUIDES
The first view of Everest above Namche Bazaar with Lhotse and Nuptse visible during the Everest Base Camp Trek with the Life Happens Outdoors team.

Everest Base Camp Trek

A carefully paced journey into the heart of the world’s highest mountains.

EXPLORE GUIDES
Camp 1, Plaza Canadá during the Aconcagua Expedition with the Life Happens Outdoors team.

Aconcagua Expedition

A serious 6,962-metre expedition to the highest mountain outside Asia.

EXPLORE GUIDES
The Life Happens Outdoors team at sunrise on the shoulder of Cotopaxi during the Climb Cotopaxi & Climb Chimborazo Expedition.

Chimborazo and Cotopaxi Expedition

Build high altitude mountaineering experience on Ecuador’s great volcanoes.

EXPLORE GUIDES
The third mogul of Mont Blanc during the Climb Mont Blanc Summit Course with the Life Happens Outdoors team.

Mont Blanc Summit Course

Prepare for Western Europe’s highest summit through a structured alpine course.

EXPLORE GUIDES
Sunrise with the Life Happens Outdoors team moments from the top, as seen from the Island Peak glacier during the Climb Island Peak Expedition.

Island Peak Expedition

Combine the Everest Base Camp journey with a first Himalayan climbing objective.

EXPLORE GUIDES
LHOer Melissa Jeffries on the summit during the Climb Lobuche East Expedition with the Life Happens Outdoors team.

Lobuche East Expedition

Progress from high altitude trekking into a more demanding Himalayan climb.

EXPLORE GUIDES
Sunrise on the summit during the Climb Kilimanjaro Expedition with the Life Happens Outdoors team.

Climb Kilimanjaro

Africa’s highest peak and a powerful first high altitude objective.

EXPLORE GUIDES
The first view of Everest above Namche Bazaar with Lhotse and Nuptse visible during the Everest Base Camp Trek with the Life Happens Outdoors team.

Everest Base Camp Trek

A carefully paced journey into the heart of the world’s highest mountains.

EXPLORE GUIDES
Camp 1, Plaza Canadá during the Aconcagua Expedition with the Life Happens Outdoors team.

Aconcagua Expedition

A serious 6,962-metre expedition to the highest mountain outside Asia.

EXPLORE GUIDES
The Life Happens Outdoors team at sunrise on the shoulder of Cotopaxi during the Climb Cotopaxi & Climb Chimborazo Expedition.

Chimborazo and Cotopaxi Expedition

Build high altitude mountaineering experience on Ecuador’s great volcanoes.

EXPLORE GUIDES
The third mogul of Mont Blanc during the Climb Mont Blanc Summit Course with the Life Happens Outdoors team.

Mont Blanc Summit Course

Prepare for Western Europe’s highest summit through a structured alpine course.

EXPLORE GUIDES
Sunrise with the Life Happens Outdoors team moments from the top, as seen from the Island Peak glacier during the Climb Island Peak Expedition.

Island Peak Expedition

Combine the Everest Base Camp journey with a first Himalayan climbing objective.

EXPLORE GUIDES
LHOer Melissa Jeffries on the summit during the Climb Lobuche East Expedition with the Life Happens Outdoors team.

Lobuche East Expedition

Progress from high altitude trekking into a more demanding Himalayan climb.

EXPLORE GUIDES

LATEST IN High Altitude Preparation

Trekkers ascending a rocky high-altitude slope on Aconcagua during acclimatisation

Oxygen for Altitude Sickness, Pulse Oximeters and SpO2: What Trekkers Should Understand

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Life Happens Outdoors trekker resting at high altitude with Ama Dablam behind him in Nepal

Altitude Headaches: What They Can Mean on a Trek

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Life Happens Outdoors trekker walking across rocky terrain beside a mountain waterfall.

Hydration at Altitude: Why Drinking Enough Is Harder Than It Sounds

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Trekker in an orange jacket holding an open notebook beside a glacial lake below a mountain glacier.

Sleep at Altitude for High Mountain Trips

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