About the community
Paint pebbles or stones and write “trouve mon galet 57” on the back. You can also add the first name, pseudonym, or initials of the person who made it. Then hide ythe group’s creations wherever you choose, photograph the hiding place to provide a clue, and post a few hints.
Other people can then search for them. After discovering one, they may keep the stones or release them again. In either case, a new post in the group must announce the find and state whether they are being kept or hidden again.