This project evaluation report summarizes a collaboration between schools in different countries to develop innovative learning units using geocaching. Teachers created geocaching trails related to topics like tourism, art, food, sports, and science to motivate students and help them develop skills like teamwork, problem solving, and presentation skills. Students provided feedback that geocaching improved their language, technology and teamwork skills. The cultural exchanges during mobility activities were especially impactful, giving students an unforgettable experience meeting new people in other countries. While successful overall, the report notes that future projects could improve coordination for cache creation and use smaller groups for geocaching activities.