MOVE
Develop pacing, load management and the ability to sustain effort over successive days.
RAWTERRAINS / MISSION TMB 2027
TOUR DU
MONT BLANC.
A journey through three countries. Sustained effort, practical skills and shared responsibility in the Alps.
176 kmExpedition distance
19–29 AUG2027 edition
3France · Italy · Switzerland
€1,700Per participant
01 / THE EXPERIENCE
CAPABILITY,
DAY AFTER DAY.
Mission TMB brings the DSS approach to a multi-day mountain expedition. You carry your equipment, manage your effort and contribute to the group as you move through varied terrain.
Navigation, outdoor routines and decisions in changing conditions form part of the experience. Preparation gives you a foundation; the expedition gives you opportunities to apply it.
Our August 2026 expedition provides the experience behind the next edition, taking place on 19–29 August 2027.
NAVIGATE
Apply map reading, route awareness and considered decisions in mountain terrain.
WORK TOGETHER
Share responsibility, communicate clearly and contribute to daily expedition life.
02 / BEFORE DEPARTURE
THE JOURNEY STARTS
BEFORE THE TRAIL.
The DSS preparation approach brings together physical conditioning, equipment familiarisation and practical outdoor training.
- Build your foundationDevelop fitness and become familiar with walking under load.
- Practise outdoorsUse preparation walks and immersion training to understand your equipment and routines.
- Plan the expeditionReview kit, logistics and expectations before departure.
The preparation schedule and full 2027 package details will be provided during your enquiry.
FROM OUR 2026 EXPEDITION
ON THE TRAIL.
03 / THE ROUTE
AROUND THE MASSIF.
The 2027 expedition covers 176 km. The route below shows the main stages from our 2026 itinerary, as a reference for the journey.
Final 2027 stages and overnight arrangements will be confirmed before departure. Route choices remain subject to conditions.
- 01
Les Houches → Notre-Dame de la Gorge
Via Col de Voza, towards the first overnight stop.
- 02
Les Chapieux
Through the Col du Bonhomme and Col de la Croix du Bonhomme.
- 03
Col de la Seigne
Crossing from France into Italy.
- 04
Courmayeur / Val Veny
Through Lac Combal and the Mont Favre balcony.
- 05
Arnuva
Along the Italian balcony, past Bertone and Bonatti.
- 06
La Fouly
Over Grand Col Ferret and into Switzerland.
- 07
Champex-Lac
Through the Swiss valley towards the lake.
- 08
Trient / Le Peuty
Via the Bovine route and Col de la Forclaz.
- 09
La Flégère
Back into France via Col de Balme.
- 10
Chamonix
The final section via Lac Blanc and the Aiguilles Rouges balcony.
04 / YOUR PLACE
19–29 AUGUST 2027.
MISSION TMB / RAWTERRAINS
€1,700 per participant
176 km · France, Italy and Switzerland
Discuss your participationPLAN YOUR PARTICIPATION.
Contact us to discuss your experience, preparation and suitability for the expedition.
Ask for the full 2027 package, equipment requirements, travel arrangements and booking conditions before committing.
An enquiry starts a conversation. It does not reserve a place or take payment.
05 / PRACTICAL QUESTIONS
BEFORE YOU COMMIT.
Do I need previous expedition experience?
Tell us about your walking experience, fitness and experience carrying equipment. We will discuss the demands with you and the preparation you need.
What equipment will I need?
You will need equipment for sustained mountain walking and overnight outdoor use. Request the 2027 kit list before purchasing equipment so you can prepare for the specific requirements of this edition.
Are travel, food and insurance included?
Request the full 2027 inclusions and exclusions with your enquiry. We will clarify travel, food, equipment and insurance arrangements so you can plan your total budget.
How do I take the next step?
Use the enquiry button to contact DSS about Mission TMB 2027. We will discuss preparation and provide the practical and booking information.
YOUR NEXT EXPEDITION
START WITH THE PREPARATION.
Tell us about your experience, your fitness and what you want to work towards. We’ll discuss the expedition with you and explain the next steps.
Enquire about TMB 2027PARTICIPANT FEEDBACK
TRAINING REVIEWS.
Mission TMB
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BOOKING INFORMATION
CANCELLATION POLICY.
Our expedition cancellation schedule and additional conditions are reproduced below. The complete website terms are still under prelaunch review.
| Notice before the start | Refund |
|---|---|
| 3 calendar months or more | Full refund, minus a €150 registration fee |
| At least 2 calendar months, but fewer than 3 | 75% of the total amount paid |
| At least 1 calendar month, but fewer than 2 | 50% of the total amount paid |
| At least 15 days, but fewer than 1 calendar month | 25% of the total amount paid |
| Fewer than 15 days | No refund |
Medical or accident-related cancellations
In the event of a medical emergency or accident, participants may receive a 75% refund or transfer their registration to the following year’s expedition with valid medical documentation.
Additional expedition terms
Participants must avoid activities that could lead to injury prior to the expedition. Delta Survival School is not liable for any injuries resulting from such activities, and no refunds will be provided. All participants must sign a liability waiver acknowledging this policy before starting any preparation activities or the expedition itself.
By registering, participants confirm their acceptance of these terms and conditions.
These commercial cancellation conditions are subject to mandatory rights under applicable law. Their inclusion does not establish the enforceability of every clause.
Read the complete terms