08/02/2023 Belley

09/02/2023 Belley

10/02/2023 Belley

11/02/2023 Belley

The Lavours Marsh is one of the last remaining giant marshlands in continental Western Europe. Located near Ceyzérieu in the shadow of the Grand Colombier the marsh covers an area of 500 hectares and is traversed by a wooden footbridge 1.2km long.

The Lavours Marsh was declared a Nature Reserve in 1984 to protect the rich and diverse flora and fauna that exists there. Visitors can view this remarkable marshland from a 1.2km long wooden pathway on stilts that allows access right to the very heart of the marsh. All along this pathway there are signs in both French and English that give explanations about the various plants and animals that exist in the marsh. The pathway is accessible to wheelchair users and all the signs are available in Braille for the visually impaired. The only entrance to the Lavours Marsh is located in the hamlet of Aignoz, here you will find plenty of free parking and the Maison du Marais, an interpretative centre that explains the history and life of the marsh. Each year at the Maison du Marais between April and October a program of various events is scheduled that allows the public discover more about the marsh’s flora and fauna and heritage.

To access to the swamp, a mandatory parking is at visitors disposal free of charge, at the entry of Aignoz hamlet.
It is important de respect the natural reserve regulation: dogs and gathering forbidden.
The stilt walk is accessible to people with reduced mobility with the help of an accompanying person.

Open period

From 01/01/ to 31/12/


Free of charge.
Group rate available for > 10 people.


  • Themed path
  • Botanic path
  • Car park
  • Coach parking


  • Guided individual tours
  • Unguided group tours
  • Guided group tours
  • Unguided individual tours

Adapted tourism

  • Accessible for wheelchairs with assistance
  • Visual disability

Spoken languages

  • French

Hameau d'Aignoz 01350 Ceyzérieu Show / Hide location
04 79 87 90 39
04 79 54 28 41


Direct, Maison du marais
  • 04 79 87 90 39