https://www.geocaching.com/geocache/GCAA2ZD_maker-magic-dortmund
GCAA2ZD Maker Magic Dortmund (Event Cache) in Nordrhein-Westfalen, Germany created by Wulfman_Do
Geocaching is a treasure hunting game where you use a GPS to hide and seek containers with other participants in the activity. Geocaching.com is the listing...