Meeting point at the Haut-de-Caux parking lot. After a short presentation of the day, we will take the paths that lead to the Merdasson (possibility to take the cogwheel train to Jaman to reduce the walking time of 1h30).
Then a nice crossing to the Col de Bonaudon where the entrance to the cave is just after. Arrival at the top of the Rochers de Naye from where you can enjoy a breathtaking view of the Alps and Lake Geneva.
After a nice break and a visit to the botanical garden we will go down the other side of the mountain to finish on a nice loop to Haut de Caux.