Treasure hunt for detectives

This treasure hunt takes you through the city of Biel from one end to the other, taking in the old town, the centre and the station district. The itinerary favours discreet alleyways and secret shortcuts. At each stage, you'll have to observe carefully, solve riddles and decipher codes to continue the route. For the most complex puzzles, clues are available.

It's all done on paper: the hunt can be completed without a telephone, using only a brochure. Logic, an eye for detail and a good dose of reflection are your best allies - and a bit of cunning too. Just before the finish line, the challenge gets tougher: you still have to get your hands on a carefully hidden treasure, just for you.

There are plenty of places to stop along the way. The departure time is free, but can be adjusted after booking.