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Wolli and the Climate Detectives

Theme trail · Switzerland
LogoZermatt - Matterhorn
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  • Wolli and the climate detectives – audio story with quiz
    / Wolli and the climate detectives – audio story with quiz
    Photo: Zermatt Tourismus, Zermatt Tourismus
  • / Walk past the Riffelsee lake with reflection of the Matterhorn
    Photo: Marco Schnyder ¦ Gornergrat Bahn, Zermatt Tourismus
  • / Solving the seven riddles as a family
    Photo: Christian Pfammatter ¦ Gornergrat Bahn, Zermatt Tourismus
  • / At the end there is a treasure chest with a surprise waiting for you at the tourist office
    Photo: Zermatt Tourismus, Zermatt Tourismus
m 3500 3000 2500 2000 1500 20 18 16 14 12 10 8 6 4 2 km Bergbahnstation Rotenboden Bergbahnstation Riffelberg Bergbahnstation Riffelberg Riffelsee Bahnhof Zermatt Bahnhof Zermatt
This playful exploration of climate phenomena is fun for the whole family. The Zermatt children’s mascot, Wolli, lends a hand. The trip starts off with a ride up the Gornergrat, followed by plenty of surprises!
Distance 21.2 km
2:30 h
1,601 m
1,601 m
3,107 m
1,605 m

Who can solve the puzzle of the seven missing glacier fleas? “Wolli and the climate detectives” is a mystery that starts at Zermatt Tourism, beside Zermatt’s railway station, with an audio guide and map. The ride on the Gornergrat Bahn cog railway is full of mystery as well as beauty. After a stop at the observation platform, it’s back down to Rotenboden for the walk to Riffelberg. Wolli, the Valais Blacknose sheep, and his friends, the squirrel, the alpine chough, the stone man and the Matterhorn, set seven puzzles along the way.

As a result, the walk is great fun for kids, too. Will the young climate detectives manage to crack the code to the treasure chest on their return to the village? There’s a surprise waiting for them in the chest, located at the tourist office on Bahnhofplatz, by the station.

Participation on the climate audio trail is, in principle, free. However every family member will require a train ticket for the Gornergrat Bahn.

  • Fun and games in the mountains for the whole family
  • Appropriate for children from age 6
  • Stimulates children’s imagination
  • Audio guide and quiz are online available
  • You can also borrow binoculars from Zermatt Tourismus with a deposit of CHF 20.

Author’s recommendation

There are various Wolli souvenirs to buy in the Tourist Office at the train station so that Wolli can go with you on your adventures. With the help of an interactive map, you can also visit the black-nosed sheep between July and September.

Profile picture of Zermatt Tourismus
Zermatt Tourismus
Update: April 01, 2022
Highest point
3,107 m
Lowest point
1,605 m
Best time of year

Safety information

  • Plan every mountain tour carefully and adapt to participants’ fitness level as well as the weather and season.
  • Weather conditions can change quickly in the mountains. Appropriate clothing is therefore essential, along with adequate supplies of food and water. In uncertain weather, turn back in good time.
  • Inform others of planned route, and whenever possible avoid going alone.
  • Do not leave the marked routes; do not venture onto glaciers without a mountain guide.
  • Please be considerate to other walkers and to plants and animals.
  • Take note of the warning signs drawing attention to the constant danger in river beds and along watercourses below dams and reservoirs.

Tips and hints

Flyer "Wolli and the climate detectives"

Audio guide for downloading


Zermatt (1,620 m) (1,608 m)
2'623'959E 1'096'939N
46.023575, 7.748031
46°01'24.9"N 7°44'52.9"E
32T 403098 5097428


Zermatt (1,620 m)

Turn-by-turn directions

Zermatt (station) - Gornergrat - Rotenboden - Riffelberg - Zermatt (station)

Ride on the Gornergrat Bahn: Zermatt - Gornergrat, Gornergrat - Rotenboden, Riffelberg - Zermatt
Walk en route: Rotenboden - Riffelsee - Gagenhaupt - Riffelberg (approx. 1h)


all notes on protected areas

Public transport

By train to the Matterhorn village: 3½ hours from Zürich airport or 4 hours from Geneva airport. Change at Visp onto the Matterhorn Gotthard Bahn (Matterhorn Gotthard Railway). From Visp, the railway leads through the Mattertal valley past idyllic small villages to Zermatt.

Zermatt is also the start and finish point for the world-famous Glacier Express panoramic train journey (Zermatt to St. Moritz or Davos).

Getting there

Zermatt is car-free. Private vehicles are permitted only as far as Täsch (5 km before Zermatt). The Täsch–Zermatt road is closed to the public.

Onward travel to Zermatt is either by private taxi or shuttle train. Trains depart every 20 minutes; the journey takes about 12 minutes, and ends at the Bahnhofplatz in Zermatt.


Täsch has car parks with both covered and open-air parking – e.g. at the Matterhorn Terminal or privately operated facilities.

Onward travel: see “Getting there”.


2'623'959E 1'096'939N
46.023575, 7.748031
46°01'24.9"N 7°44'52.9"E
32T 403098 5097428
Arrival by train, car, foot or bike

Author’s map recommendations

A walking map (1:25,000) is available from Zermatt Tourism’s guest information centre, along with brochures containing tips and recommendations.


We recommend for “Wolli and the climate detectives”:

  • Audio guide and quiz (are online available)
  • Good footwear
  • Hiking poles (optional)
  • Clothing suitable for the weather (always carry a waterproof)

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21.2 km
2:30 h
1,601 m
1,601 m
Highest point
3,107 m
Lowest point
1,605 m
Circular route Scenic Refreshment stops available Family-friendly Geological highlights Botanical highlights Flora and fauna Cableway ascent/descent Insider tip


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