Special offers

The Ligerz File: The Golden Key

Solve puzzles and immerse yourself in an adventure-packed story.

Everything has changed since the last vintners’ fair. The Golden Key of Ligerz has vanished without trace. Now your detective’s instinct is called for! Immerse yourself in an adventure-packed story and solve tricky puzzles. On foot, by boat, by train and the "vinifuni" funicular railway, you will go in search of the missing key. The hunt for clues will lead you through the unique landscape by Lake Biel/Bienne and take you to Ligerz and Prêles.


Benefit from the following when you purchase travel to and from the event by public transport at the same time:

  • 20% discount on the journey to Biel/Bienne and back
  • 20% discount on the puzzle trail


  • Directions: take the train to Biel/Bienne, then walk for approx. 15 minutes or take the No. 9 bus to the boat landing stage of Lake Biel/Bienne Navigation. Please note the boat timetable, as the offer starts with a boat ride to Ligerz.
  • Starting documents (the file) are available from the SBB counter at Biel/Bienne Railway Station upon presenting your voucher.
  • Duration: 3–4 hours (of which approx. 1 hour boat ride)
  • You will need a pen and paper, as well as a smartphone.
  • At the end of the hunt for clues, you will receive a small gift.
  • This puzzle-based activity does not require much walking.

Availability Today (Saturday) open

Offer valid from 9 April to 16 October 2022

Subject to change without prior notice. Please consult the online timetable.

How to get there

Travel comfortably by train to Biel/Bienne.

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