• Distance : 4,8 km

  • Walking time : 1h15

  • Altitudes : lowest point 862 m ; highest point 919 m

  • Elevation : gain 161 m ; drop 133 m


Les Moulins – Pont de Pierre – La Chaudanne – Rossinière

The trail leaves the village of Moulins, traversing valley floor prairies  to the Sarine. Follow the Sarine and cross the Pont de Pierre. Then walk down the river, along the right bank, to Chaudanne where you cross the main bridge. On the left bank, follow the country road, which historically served as the transit route from the Riviera or the Gruyère to the Pays-d’Enhaut and Saanenland. Opposite Rossinière, the route forks right toward the village. Cross the Sarine on an old stone bridge and climb to the village.



Chaudanne Spring

Between Les Moulins and Rossinière, water gushes from a large vertical well and forms a stream. At Chaudanne Spring, water seems to emerge from the depths of the Earth. Water seeps into the ground on the east slope of the Vanils Range and joins an interminable underground network of subterranean galleries, only to reach the surface after travelling several kilometers underground. Located several meters below the main road (Bulle – Château-d’Œx), the spring is circular in form with a diameter of about 2 meters. It spills into a flooded funnel, which marks the entrance to a subterranean water network.

The Chaudanne is a vauclusienne spring, which means that its water climbs vertically through pressurized subterranean channels before reaching the surface. Rising from a depth of several hundred meters, this site constitutes one of the deepest submerged galleries in the Prealps. The site is made even more special by the fact that it has been explored by speleologist-scuba divers. In 1988, scuba diver Cyrille Brandt reached the depth of -143 m, which was the deepest speleological dive in Switzerland at that time. In 2009, a new record was set with a depth of -175 m at Chaudanne Spring. The dive lasted more than 9 hours.

The water temperature is stable at around 8°C, which is cold for divers, but relatively warm when considering the altitude of the catchment basin (880 m to 2389 m). The stability of the temperature is further evidence that the water spends quite a bit of time in subterranean networks between seepage and emergence at Chaudanne
spring. The output of the spring changes rapidly with water levels, ranging from about 70 l/s during dry spells to 3000 l/s during periods of high water.


Le Grand Chalet

The Grand Chalet, constructed in the 18th century, is one of the largest wood home in Switzerland. The Grand Chalet, formerly the Grande Maison, was built in 1754 for two families. On the lower ground floor an immense cheese cellar can be found. Jean-David Henchoz, the general contractor, attempted to make this a cheese commerce center. From 1857 to 1976, the building was converted into a hotel, where Victor Hugo once spent time. The painter, Balthus bought the building in 1977. He lived and worked there until the end of his life in 2001.


Accommodation and dining facilities

The Park offers a list of agritourism accommodations that includes alternative accommodation, food and cheese-making demonstrations in the Park. Alternative accommodation includes chalets, refuges, B&Bs and guest rooms.

Public transport

Information and timetable: www.sbb.ch – Rail Service 0848 44 66 88 (CHF 0.08/min.)

Les Moulins : PostBus (line 174 Château-d’Œx – Col-des-Mosses). Stop Les Moulins, village

Rossinière : MOB train (Montreux – Zweisimmen). Stop Rossinière





When you produce a valid public transport ticket for the dates of your package, we will refund you the price of a half-fare public transport ticket from your home in Switzerland (or from your point of entry in Switzerland) to your destination in the Park. If you decide to stay for two or more additional nights in the Park – either prior to the start of or at the end of your chosen package deal – we will refund you the price of a full-fare public transport ticket.




Place du Village 6 
1660 Château-d'Œx
+41 (0) 26 924 76 93

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+41 (0) 848 110 888

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 Avec le soutien de l'Office fédéral de l'environnement (OFEV) ainsi que des cantons de Fribourg et Vaud