Dersu connect people with mountains.

Dersu app

Download the App and plan your routes safely.

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Enjoy the mountains safely and at your own pace

Mountaineer profile

Finding the most suitable routes begins with knowing your level

Define your physical and technical levels as well as the degree of exposure you are comfortable with. This way, you'll know if the route is suitable for you and your group. Yes, we are also taking vertigo into account.

Dersu App

Plan your routes

We love when a plan comes together

Dersu app

Discover the route's level, the most important waypoints, and the equipment needed.

Dersu app

Check the weather in the area and how it will affect your route.

Dersu app

Create a group and see if the plan suits everyone's level.

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Alerts on route

Taking action on the ground

Be aware of the critical waypoints along your route and consult the tips that will help you make informed decisions.

Dersu App
Dersu App

Learn about mountain

Follow your own pace to gain autonomy and security

Articles, videos, training itineraries... At Dersu you will find plenty of ways to help you set off to the mountain and become more independent. If you so wish.

Learn about mountain