E0##6320## Cycling tour: Geological curiosities of Valromey | Bugey Vélo

31/03/2023 Belley

01/04/2023 Belley

02/04/2023 Belley

03/04/2023 Belley

Cycling tour: Geological curiosities of Valromey

Cycling tour: Geological curiosities of Valromey

This circuit located on the southern part of Valromey will take you from one geological curiosity to another with the possibility of accessing the Cerveyrieu waterfall, the Thurignin Gorges, the source of Groin and the Sugar Loaf.

These four places of interest are all located a stone's throw from the road, you will have to take paths for a few meters to reach them.

- Access to the Cerveyrieu waterfall: before crossing the bridge, follow the path on your right along the Seran for about a hundred meters.

- Access to the Thurignin gorges: you will have to follow large path for 400 meters from the "Gare de Vieu" point. The last 50 meters of approach are a bit steep, it is advisable to leave the bikes at the top of the last descent.

- Access to Sugarloaf: you will have to leave your bikes at the top and walk down a staircase of about fifty meters to discover the Sugarloaf located below.

- Access to the source of Groin: go down the Chemin de la source in Vaux Morets to the first information panel located near the bridge, then follow the large path for 200 meters before arriving at the source.

Open period

All year round.


  • Drop : 620 m
  • Distance : 37 km
  • Daily duration : 135 mn


  • Level bue - Medium


Free access.

Spoken languages

  • French