Description
Help the guardians find the Manus-Tri by solving the puzzles in the chest!
The SITOM des Vallées du Mont-Blanc unveils its mysterious locked chests, filled with puzzles to be solved as a team on the theme of waste reduction and sorting.
Booking required at the Crest-Voland/Cohennoz tourist office.
Accessibility
Accessible for self-propelled wheelchairs
Reserved space 330 cm wide < 100 m from the site
Absence of protrusions > 2 cm
Minimum aisle width of 90 cm
Incline >5% but reasonable
Rates
Free access.
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Opening times
On 23 July 2026
- 14:30 at 15:30
