Secret circuit of Porrentruy

Discover Porrentruy or see it in a whole new light with its secret circuit, its myths and its legends.

Equipped with a digital key, you have access to a number of less well-known locations around the castle and the old town, with animation, sound and light displays at some of the sites. It’s also possible to book a guide for the activity.

With your master key in hand, open the doors to some of Porrentruy’s more secret and unusual locations where you’ll enjoy some thrilling animations. Do you know the story of Pierre Péquignat, the rebellious civil servant who defied the prince-bishop, and the tragic end to his fight? Have you ever seen the Vouivre – the fantastical, mythical animal which feeds on the energy of the water – come to life in front of your eyes? Do you think dinosaurs still haunt the town of Porrentruy? On the secret circuit you’ll enjoy a unique and exclusive experience.

Route to follow

Start and end point: Jura Tourism, Rue du 23 juin 20

At the castle

  • South hallway animation
  • The Roggenbach chapel
  • The old dungeons
  • The Réfous tower

Route de Bure: Varieux reservoir

At the castle: historic steps and prison

  • Rue Trouillat 11: well and treasure
  • Grand-Rue 18: the alleyway
  • Cold room and garden at Hôtel-Dieu
  • Watchmaking foundation


Price per person

  • Adult: CHF 9
  • Child 7 to 16: CHF 6
  • Student/AHV/IV: CHF 8

Prices for groups

  • 10% discount for groups of 10 to 20 people.
  • 40% discount for groups of 20 or more people.

Benefit from a 20% discount for one person with the JURA-PASS or Club BCJ.

Additional information

Buy ticket

Buy your ticket from the SBB Shop or SBB Mobile app. You can also buy a ticket from the driver, at all ticket terminals, PostBus sales offices and at the counter of your nearest railway station.
Additional ticketing apps and online shops can be found in our overview.

Timetable / travel information

You will find the entire Swiss public transport timetable online here.


For groups of 10 people or more, a reservation is required by no later than 4 p.m. on the previous day. Tel. +41 58 386 89 08

Bicycle transport

Bicycle transport fixtures available in/on the vehicle. You can find more information at Biking and Postbus.

Wheelchair accessibility

Wheelchair accessibility is guaranteed in the Postbus

Contact details


PostBus Ltd
West sector
Avenue de la Gare 6
1401 Yverdon-les-Bains