New for 2023, the CCPMB is offering several fun trails to discover the Baroque heritage of the Mont Blanc region. With your game book in hand, unravel some of the mysteries of Baroque architecture by solving riddles and deduction games.
As you follow the fun trail "La Thonnaz ne sonne plus", you'll pick up a number of clues that will lead you to the Tonnaz bell and the key to the Helvetius Barocus treasure.
Comic book on sale in shops and at the Tourist Office.
Comic book on sale in shops and at the Tourist Office.
Rates
Rates
Free of charge.
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Openings
Openings
From 15 June 2025 until 10 November 2025 - Open everyday
Location
Location
Spoken languages
Spoken languages
Environment
Environment
- Mountain location
Access
Access
- Departure from La Tonnaz 12 km AR (during the summer holidays, due to the large number of visitors and the limited parking on site, we recommend that you take the free shuttle bus, which offers numerous departures from the village throughout the day. Information at the Tourist Office).
