Boolder is now open source! Boolder is now open source! We are looking for an Android developer to join the team.
Discover thousands of problems & circuits for all levels.
Discover the Boolder app
The best way to enjoy bouldering in Fontainebleau, available on iPhone and Android.
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The beginner's guide
Discover the equipment needed, safety tips, and important rules to be aware of to protect the forest.
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