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Act for the
heritage
Presentation
Volunteers workcamps
FAQ Volunteer Workcamp
Formation
Act for the
environment
Presentation
Animations / Walks
Support/Training
Act in front of
natural risks
Presentation
Animations / Walks
Formation
Act on the
international stage
Presentation
International campus
Current projects
Previous projects
The association
Opus
The label CPIE
Our history
The team
The board of trustees
Our partners
1 Jan 2026 au 31 Dec 2026
Volunteers workcamps
Trainings and support
International campus
Animations / Walks
Newsletter
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