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.
The beginner's guide
Discover the equipment needed, safety tips, and important rules to be aware of to protect the forest.
Read the guide