A well-known and classic tour along the Ceze on the Mejannes-le-Clap plateau. The Grotte Claire has been known for a long time and in the 2000s the Arva entrance was opened, allowing a short, 300 meter long traverse. A classic "initiation speleo" tour that can also be undertaken with children: short narrow passages, a 10-metre shaft and two tyroliennes at the end, which are fixed with steel cables. Finally, the beautiful portal of the Grotte Claire. The decoration is also surprisingly beautiful despite the numerous passages.
