This is located as part of the Playscape. Parking available close by and just a short walk or bike ride down the nice Volksweg Trail. You can also access this by taking advantage of the Nature Trail that is nicely marked at the Playscape.
This will take ya back a few years before techniology became such a part of our lives.
May not be to winter friendly and bring your own pen.
Read the instructions on the posted sign and follow the directions. As part of your logging please include your result of your solution. Keep in mind a result will NOT take a minute.