Digital riddle trail
800 meters above sea
All you need to participate is an internet-enabled smartphone. You are guided to various posts via a virtual map. As soon as you reach the corresponding coordinates, the digital content is displayed on your mobile phone.
There are various riddles to solve at the posts. When all the posts have been visited and all the questions have been answered, the game is over and a small reward awaits.
The smartphone is used intensively, so a full battery is an advantage