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Détective Nature Walking Loop (Vuache Nature Trail)

Take the family to discover the Vuache Nature Trail in Jonzier-Épagny with the Nature Detective game booklets (8-10 and 10+) from the Syndicat du Vuache. 15 educational panels, quizzes, crosswords, a botanical trail: play independently, year-round.

View on mapOfficial site
Détective Nature family loop on the Vuache Nature Trail at Jonzier-Épagny, with interpretive panels in Haute-Savoie
At a glance
Type
Educational trail-game for families
Access
Free access · free of charge
Price
Free (booklet downloadable)
Duration
1 hr 30 to 2 hr 30
Best season
Spring, summer, autumn
Parking
Vuache Nature Trail car park (free)
Town
Jonzier-Épagny

Official source →

What is Détective Nature Walking Loop (Vuache Nature Trail)

The Détective Nature walking loop is a family-friendly educational circuit on the Vuache Nature Trail, a discovery path created by the Vuache Inter-municipal Authority (SIV) across the villages of Jonzier-Épagny, Chênex, Dingy-en-Vuache and Savigny, just 15 km from Geneva. The idea: turn a walk into a treasure hunt, supported by the network of 15 educational panels along the trail.

The SIV provides two free Détective Nature booklets, downloadable from pays-du-vuache.fr or available at local Tourist Offices and the town hall — one for ages 8–10, one for ages 10 and up. Each booklet contains a question-and-answer game whose answers can be found on the trail panels (fauna, flora, geology, habitat), plus crosswords, word searches, animals to colour or draw.

The format suits families with primary-school children, school outings and nature clubs. The trail is doable in any season but spring and early summer are richest for wildlife observation.

Activities

What you can do here

Practical

Practical information

Address
Vuache Nature Trail, access from Jonzier-Épagny (74520) — waymarked start near the dedicated car park, hamlet of Jonzier View on map
Coordinates
46.073° N · 5.975° E
Altitude
≈ 530 m (Vuache Nature Trail)
Opening hours
Free access 24/7, year-round (except frost/snow). Daytime is preferable to read the panels and for children's comfort. Checked on 10 June 2026.
Prices
Free. Nature Detective booklets can be downloaded from pays-du-vuache.fr, or picked up at the Monts du Genevois Tourist Office and at the town hall. Checked on 10 June 2026.
Official site
pays-du-vuache.fr (Syndicat Intercommunal d'Aménagement du Vuache)
Phone
Jonzier-Épagny town hall: +33 (0)4 50 04 32 33 · Monts du Genevois Tourist Office: +33 (0)4 50 04 71 63
Access / Parking
Free dedicated car park for the Vuache Nature Trail in Jonzier-Épagny. Access by car from Saint-Julien-en-Genevois (≈ 15 km) or Frangy. No direct public transport.
Length of visit
1 hr 30 to 2 hr 30 depending on the children's ages and the number of stops to answer the booklet. Picnic recommended.
Audience
Families with children aged 8-12, school outings and summer camps, walkers curious about natural heritage.
Required equipment
Walking shoes, printed Nature Detective booklet and pen, binoculars useful, picnic optional.
Booking
No booking required for the Nature Detective loop. School groups: let Jonzier-Épagny town hall know in advance.
Winter

Winter season

Winter access window
Not specified
Winter infrastructure
Not specified
Snow panorama
Not specified
Equipment mandated
Loi Montagne II — winter tyres or chains required (1 Nov – 31 Mar)
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Photos

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FAQ

Frequently asked questions

What is the Nature Detective walking loop in Jonzier-Épagny?

The Nature Detective walking loop is a free family route on the Vuache Nature Trail in Jonzier-Épagny, based on Nature Detective game booklets from the Syndicat du Vuache: quizzes, crosswords, observation, with answers hidden on 15 educational panels.

Where can I download the Nature Detective booklet?

The Nature Detective booklet for the Jonzier-Épagny walking loop can be downloaded free of charge from the Syndicat du Vuache website (pays-du-vuache.fr), or picked up at the Monts du Genevois Tourist Office and at the town hall.

What age is the Nature Detective booklet designed for?

Two versions of the Nature Detective booklet are available for the Jonzier-Épagny walking loop: one for ages 8-10, the other for ages 10 and up. Children play accompanied by their parents.

How much does the Nature Detective loop in Jonzier-Épagny cost?

The Nature Detective walking loop in Jonzier-Épagny is entirely free: open-access trail, booklet downloadable for free from pays-du-vuache.fr. Checked on 10 June 2026.

How long does the Nature Detective loop take?

The Nature Detective loop on the Vuache Trail in Jonzier-Épagny takes about 1 hr 30 to 2 hr 30 depending on the children's pace and the number of stops to answer the quiz and observe nature.

What are the opening hours of the Nature Detective walking loop?

The Nature Detective trail in Jonzier-Épagny is open 24/7 year-round (except frost/snow). Daytime is preferable to read the panels. Checked on 10 June 2026.

Where can I park for the Nature Detective loop in Jonzier-Épagny?

A free car park is dedicated to the Vuache Nature Trail in Jonzier-Épagny. Access by car from Saint-Julien-en-Genevois or Frangy. The Nature Detective loop starts right next to the car park.

What else is there to do around the Nature Detective loop?

After the Nature Detective loop in Jonzier-Épagny, you can discover the boundary stone of the Château du Vuache in Vulbens, walk the Tour du Vuache, or visit the villages of the Pays du Vuache (Chevrier, Dingy, Savigny).

Sources

Sources & verification

Multi-source verification at publication. Information may change — confirm with the official operator before travelling.

Published 10 juin 2026·Updated 14/06/26

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