https://www.geocaching.com/geocache/GC2NH1V_linha-do-tamega-ponte-das-carvalhas
GC2NH1V Linha do Tamega - Ponte das Carvalhas (Multi-cache) in Braga, Portugal created by NotMuggles
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...