It consists of descending through a gorge or canyon using swimming, jumping or rappel techniques depending on the cases. There are three levels of difficulty:
- Initiation: for all audiences from the age of 10. Only swimming and jumping techniques
- Introduction to rappel: for all audiences from the age of 10. Swimming, jumping and rappel techniques are used.
- Difficulty: Only for beginners. Difficulty rappels and great unevenness.